2411932084 HelveticaLTStd-BoldCond Fits1980-1983 Jeep CJ5 w/ T176 or T177 Transmissions1980-1986 Jeep CJ7 w/ T176 or T177 Transmissions1981-1986 Jeep CJ8 Scrambler w/ T176 or T177 Transmissions1980-1986 Jeep Cherokee SJ w/ T176 or T177 Transmissions1980-1986 Jeep Grand Wagoneer SJ w/ T177 Transmission1980-1983 Jeep J10 Pickup w/ T177 Transmission1980-1983 Jeep J20 Pickup w/ T177 Transmission. With an automatic transmission, the car is faster since there is no interruption in power. Gear ratios represent the gears relation to each other in size. Manual transmissions are also known as 5-speeds. 1 April 2000. 418 0 obj <>/Filter/FlateDecode/ID/Index[411 10]/Info 410 0 R/Length 46/Prev 1528030/Root 412 0 R/Size 421/Type/XRef/W[1 2 0]>>stream 0 TradeGothicLTStd-Bold This is measured in revolutions per minute (RPMs). Cars need transmissions because of the physics of the gasoline engine. Between each of the gears are rings called synchronizer collars. Fits:1980-1983 Jeep CJ-7 w/ T176 Transmission; 32 Teeth. 0 In this situation, we need a lot more torque, but to get that, weve got to sacrifice some speed. Second, cars often need more or less torque than what the engine can optimally provide within its power band. It only moves whenever you actually shift the vehicle into reverse. endstream endobj 3 0 obj <> endobj 5 0 obj <>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/TrimBox[0.0 0.0 1206.0 783.0]/Type/Page>> endobj 6 0 obj <>stream Manual transmissions in modern passenger cars use synchronizers, or synchros, to eliminate the need for double-clutching. A typical gear ratio is 1.296:1. 2.030 Third gear is slightly smaller than the second, but still enmeshed with a smaller gear. In many vehicles, by the time a car is in fourth gear, the output shaft is moving at the same speed as the input shaft. To engage one of these gears, we need to firmly connect it to the output shaft, so power is delivered to the output shaft and then to the rest of the drivetrain. A typical gear ratio when a car is in first gear is 3.166:1. 1427837077 With engine power disconnected from the transmission, shifting gears is much easier and prevents damage to the transmission gears. | The fork slides the collar on the yellow shaft to engage one of two gears. Well, thats probably not going to cause the engine to spin fast enough to get into its power band in the first place so that it can deliver the torque to get the car moving. First, itonly delivers usable power, or torque, within a certain range of engine speed (this range is called an engines power band). AgencyFB Throughout this website the terms OEM, Jeep, Wrangler, Cherokee, Grand Cherokee, Rubicon, CJ, Mopar, Renegade, Scrambler, Commando, Sahara and all terms are used strictly for identification purposes only. This is because the reverse gear isnt constantly enmeshed with a gear on the counter shaft. Unlike the other driving gears where you can shift up without completely stopping the car, to shift in reverse, you need to be at a standstill. UnitedItalicCond-Black Go too slow or too fast, and you dont get the optimal amount of torque to get the car moving.
The gear ratio here is 2:1. The synchronizer collar does two things: 1) it firmly mounts the driving gear to the output shaft so the gear can deliver power to the output shaft, and 2) it ensures that the gear syncs up with the speed of the output shaft. Fourth Gear. 1980-1986 Jeep SJ & J-Series w/ T177 Transmission. Now, whenever you shift your car into gear, youll know whats going on beneath the hood. Shift fork. 0 Though the dual-clutch automatic transmission became popular on high-end performance cars, such as Porsches and Audis, it is increasingly available on more mainstream models. If you drive a stick-shift car, then you may have several questions floating in your head. The countershaft connects directly to the input shaft via a fixed speed gear. ;eFN0c)g19TdOQcp P 1B Sports cars, which used to be surefire ways to get manual transmissions, are also turning toward faster and more efficient automatic options. Trade Gothic LT Std Manual transmissions, also known as 5-speeds, have declined in popularity in the United States and in 2016 accounted for just 5 percent of cars sold. This moves the shifting rod that has a shift fork and synchronizer collar towards second gear. And the kicker is you wont even move the car all that much because torque drops off on an engine as it goes above its power band. h21T0PwqH)BDKP5/9?%3/pqsO ( -A&G%$@eG . OpenType - PS This is a low gear ratio. This spins at the same speed and power of the engine. Some performance cars may offer even more gears. However, they all work more or less the same, regardless of the number of gears. Whats more, you probably exhausted yourself from so much frantic swinging. 0 Sheer momentum is doing a lot of the work. Synchronizer collars are also something thats easier to understand visually. Before we get into the specifics of how a manual transmission works, lets talk about what transmissions do in general. As the graphic demonstrates, the green shaft from the engine turns the layshaft, which turns the blue gear to its right. You shift gears so the engine can stay below the redline and near the rpm band of its best performance. 2.030 11 Auto Maintenance Jobs Every Man Can Do Himself. To slide the reverse gear into its corresponding countershaft gear, you need to make sure the countershaft is not moving. Some performance enthusiasts may bemoan the loss of the "row-it-yourself" experience, since manually shifting is an enjoyable skill to practice and perfect, but if speed is the ultimate goal, it's hard to argue with the results of an automated manual transmission. %PDF-1.6 % You can read about dual-clutch transmissions in more detail here. This disconnection of power allows the engine to continue running even though the rest of the cars drivetrain isnt getting any power. TradeGothicLTStd-Light 2016-11-14T15:32:50-08:00 So you can let the engine spin at a higher speed without worrying as much about the amount of power being delivered to the wheels. 4263550061 Fits Jeep:1987-1995 Jeep Wrangler YJ1984-1986 Jeep Cherokee XJ Fits Vintage Jeep:1980-1986 Jeep CJ1974-1991 Jeep SJ & J-Series, Fits:1980-1983 Jeep CJ5 1980-1986 Jeep CJ7 1981-1986 Jeep CJ8 Scrambler 1980-1986 Jeep SJ & J-Series, Fits:1980-1983 CJ5 1980-1986 CJ71981-1986 CJ8 Scrambler, Fits1980-1983 Jeep CJ5 1980-1986 Jeep CJ7 1981-1986 Jeep CJ8 Scrambler 1980-1986 Jeep SJ & J-Series, Fits1980-1983 CJ-5, LHD w/ T176, T177 Transmission; 3/8"-16 Thread Pitch1980-1986 CJ-7, LHD w/ T176, T177 Transmission; 3/8"-16 Thread Pitch1981-1986 CJ-8, LHD w/ T176, T177 Transmission; 3/8"-16 Thread Pitch. Reverse gear is the exception. Moving the knob forward and backward moves the collar to engage one of the gears. The gear ratio here is 1:1. Ideally, youd find a pace of hammering that allowed you to hit the nail head several times with a good amount of force with each swing without tiring yourself out. When the clutch is engaged your foot comes off the pedal power between the engine and transmission is restored. To spin that 20-toothed gear once, the 10-toothed gear needs to turn twice because its half as big as the 20-toothed gear. The ride is smoother since it's all but impossible to pinpoint the moment of the gear change and fuel economy is better because there is no power lost to inefficient shifts. The idler gear (sometimes called reverse idler gear) sits between the reverse gear on the output shaft and a gear on the countershaft. Conversely, if you took your time between each swing, but made sure that each swing you did make was as hard as possible, youd drive the nail in with fewer swings, but it might take you a bit longer because youre not swinging at a steady tempo. We only recommend products we genuinely like, and purchases made through our links support our mission and the free content we publish here on AoM. What would happen if I were to accidentally shift into reverse while I am speeding down the freeway? Helvetica LT Std Want to start taking action on the content you read on AoM? Lets take a look at the parts of a transmission that allow this to happen: Input shaft. The input shaft of the transmission therefore turns at the same rpm as the engine, which improves both power output and fuel economy. Second Gear. That allows a dual-clutch transmission to complete shifts much more quickly, since there isn't a "pause" while the engine and transmission try to match back up. OpenType - PS TradeGothicLTStd-Cn18 Fits:1981-1986 Jeep CJ8 w/ T176 or T177 Transmissions1980-1986 Jeep CJ7 w/ T176 or T177 Transmissions1980-1983 Jeep CJ-5 w/ T176 or T177 Transmissions1980-1986 Jeep Cherokee SJ w/ T177 Transmission1980-1986 Jeep J-Series w/ T177 Transmission, Fits:1980-1986 Jeep CJ5, CJ7, CJ8 Scrambler, J Series Pickups with T176 or T177 4 Speed TransmissionOUT OF STOCK, Fits1980-1983 Jeep CJ51980-1986 Jeep CJ71980-1986 Jeep CJ8 Scrambler1980-1986 Jeep SJ, Fits1980-1983 Jeep CJ5 w/ T176 or T177 Transmission1980-1986 Jeep CJ7 w/ T176 or T177 Transmission1981-1986 Jeep CJ8 Scrambler w/ T176 or T177 Transmission1980-1986 Jeep SJ and J-Series w/ T177 Transmission, Fits:1980-1986 Jeep CJ & J Series with T176 or T177 4 Speed Transmission. The other issue that comes up with the gears always spinning is that the drive gear is often rotating at a different speed than the output shaft that the gear is connected to. House Industries 2.020 The shift fork holds the synchronizer collar. OpenType - PS application/pdf To ensure the countershaft isnt spinning, you need to have the car completely stopped. When the collar is between the two gears (as shown in the figure on the previous page), the transmission is in neutral. 1199565182 For example, an engine might produce its maximum horsepower at 5,500 rpm. The car is faster since there is no interruption in power, the ride is smoother since it's all but impossible to pinpoint the moment of the gear change, and fuel economy is better because there is no power lost to inefficient shifts. First gear is the largest gear, and the gears get progressively smaller as you get to fifth gear. Ideally, the transmission would be so flexible in its ratios that the engine could always run at its single, best-performance rpm value. Fits:Jeep CJ (1980-1986) w/ T176 or T177 Transmission.Jeep SJ & J-Series (1980-1986) w/ T177 Transmission. The CVT does have its downsides; most notably, it can be sluggish to drive, since it's engineered for efficiency rather than fun. Fits: All Jeeps with T4 Manual TransmissionAll Jeeps w/ T176 or T177 Manual Transmission. The output shaft runs parallel above the countershaft. Its able to do this effective transmitting of power through a series of different sized gears that leverage the power of gear ratio. That is the idea behind the continuously variable transmission (CVT). 2.020 Theyd both spin at the same speed, and theyd both deliver the same amount of power. The ratio in this arrangement is 1:2. adobe:docid:indd:8cb252af-65b8-11e0-ab52-c56984a1fdef OpenType - PS This allows all of the gears to freely spin at the same time while the engine is running. TradeGothicLTStd In addition to the gear that takes power from the input shaft, the countershaft also has several gears on it, one for each of the cars gears (1st-5th), including reverse. You can see that as you move the shifter left and right you are engaging different forks (and therefore different collars). Adobe PDF Library 15.0 Well begin with starting a car and shifting up to second gear. Fourth gear is slightly smaller than the third. endstream endobj 412 0 obj <> endobj 413 0 obj <>>>/Rotate 0/Type/Page>> endobj 414 0 obj <>stream
On a five-speed transmission, theres a collar between the 1st and 2nd gears, between the 3rd and 4th gears, and between the 5th and reverse gear. Your engine sounds like its about to die, but youre not moving any faster. If youve revved your engine until the tachometer gets into the red, you understand this concept viscerally. The transmission ensures that your engine spins at an optimal rate (neither too slow or too fast) while simultaneously providing your wheels with the right amount of power they need to move and stop the car, no matter the situation you find yourself in. 0 adobe:docid:indd:8cb252af-65b8-11e0-ab52-c56984a1fdef
When you start a manual transmission car, before you turn the key, you disengage the clutch by pressing down on the clutch pedal. First Gear. - 1984-2019 Somar Motor, LLC. endstream endobj startxref Lets roll up our sleeves and get started. 0 @ &. The automated manual transmission is perhaps better known and more accurately described as the dual-clutch automatic, and it is an increasingly popular option. We need the engine to stay within its power band. The idler gear is what allows your car to go in reverse. Lets take a look at another scenario: Lets say youve got the car moving really fast, like when youre cruising on the freeway. 0 This causes a shifting rod in your transmissions gearbox to move the shifting fork towards first gear, which is mounted to the output shaft via ball bearings. If you want options such as engine upgrades or all-wheel drive, those features often come only on models or trim levels that do not offer manual transmissions. MinionPro-Regular
Third Gear. Fits:1980-1986 Jeep CJ w/ T176 or T177 Transmission.1980-1986 Jeep SJ & J-Series w/ T177 Transmission. The clutch sits between the engine and gearbox of the transmission. Both of the blue gears freewheel on the yellow shaft at the different rates controlled by their ratios to the layshaft. At all times, the blue reverse gear in this diagram above is turning in a direction opposite to all of the other blue gears. 2771965578 Jeep is a registered trademark of FCA US LLC. We'll talk about that next. Inside the transmission are a series of variously sized, toothed gears that produce torque. This is why whenever you shift gears, you push the clutch pedal and disengage the clutch. Below youll find a diagram of the power flow when the different gears in a 5-speed manual transmission vehicle are engaged. 229942480
However, as many drivers choose to move away from the manual transmission, which results in fewer manuals being offered, the CVT continues to increase its presence. A continuously variable transmission (CVT) has a nearly infinite range of gear ratios. 2411932084 Lets bring that concept back to the purpose of the transmission. As of late 2016, one out of every four cars sold in the United States was equipped with a CVT. The speed of the output shaft is determined by which of the five gears are in gear, or engaged. Engine torque is how much twisting force the engine generates at its shaft for a particular speed of rotation. The gearshift is what you move to put a car into gear. However, they will make a lot of noise. The transmission allows the gear ratio between the engine and the drive wheels to change as the car speeds up and slows down. Thanks to some excellent mechanical engineering, the synchronizer collar can connect to a gear with very little noise or friction even while the gear is moving, and sync the gears speed with the input shaft. 0 The gear shift knob moves a rod connected to the fork. You can read How CVTs Work for even more information on how continuously variable transmissions work. 0 But with the car in first gear, youre not going to be able to go very fast because the gear ratio causes the output shaft to turn at a certain speed. Now let's look at a simple transmission. This first gear on the output shaft is enmeshed with a gear thats connected to a countershaft. The input shaft comes from the engine. 1st-5th gears. Adobe Systems To move the car, we need to transfer thatrotational power to the wheels. As of late 2016, only 5 percent of new vehicles were sold with manual transmissions, according to U.S. News & World Report. In vehicles with a fifth gear (also called overdrive), itis connected to a gear thats significantly larger. 2016-11-14T15:32:50-08:00 Fits:1980-1981 Jeep CJ w/ T176, T177 Transmission1981-1990 Jeep SJ & J-Series w/ T176, T177 Transmission. In this article, we'll answer all of these questions and more as we explore the interior of a manual transmission. Looking at the shift rods from the top, they look like this in reverse, first and second gear: Keep in mind that the shift lever has a rotation point in the middle. OpenType - PS With the clutch disengaged, you movethe gearshift into first gear. xmp.did:ed36c394-b627-4297-a1b0-84109fe7afd4 Drivers can use the selector lever or shift paddles on the steering wheel to shift themselves. 0 proof:pdf Even if you're among the rare car buyer who prefers to drive a manual, you'll have a hard time finding one the next time you go to a dealership. How do you sync up a gear spinning at a different rate as the output shaft, and in a smooth waythat doesnt cause a lot of grinding? Adobe InDesign CC 2017 (Macintosh) The Font Bureau Internally, it looks something like this: There are three forks controlled by three rods that are engaged by the shift lever. Note: Before you read how a transmission works, I highly recommend reviewing our Gearhead 101s on the ins and outs of engines and drivetrains. The reverse gear is the only gear in a synchronized transmission that isnt always enmeshed or spinning with a countershaft gear. Shift Knob Lock Nut for Jeep CJ5, CJ7, CJ8, SJ AND XJ, Shift Lever Boot, Jeep CJ 1980-1980 w/ T176 or T177, Shift Lever Spring for 19080-1986 Jeep CJ & J Series with T176 or T177 4 Speed Transmission, Crown Shift Lever; 1980-1986 Jeep CJ5, CJ7, CJ8 w/ w/ T176, T177 Transmission; 3/8"-16 Thread Pitch, Shift Lever Repair Kit (Includes #4,5,6,8), T176 & T177 Shift Cover, Backup Light Switch for 1980-1981 Jeep CJ Series & 1981-1990 SJ & J Series with T176 or T177 4 Speed Manual Transmission, Shifter Cover for 1980-1986 Jeep CJ Series with T176 or T177 4 Speed Transmission, Spring, Shift Interlock (3 Required), T176 & T177 Shift Cover, Poppet Ball for 46-86 Jeep CJ, SJ & J Series, 1st & 2nd Gear Shift Fork for 1980-1986 Jeep CJ & J Series with T176 or T177 4 Speed Transmission, Reverse Gear Shift Fork for 80-86 Jeep CJ & J Series with T176 or T177 4 Speed Transmission, Reverse Idler Shaft Washer for T176 & T177, Reverse Sliding Gear for T176 or T177 4 Speed Transmission, Retainer, Front Bearing for 1980-1986 Jeep CJ & J Series with T177 4 Speed Transmission, Front Bearing Retainer Seal for T150, SR4, T14, T15, T86, T176 & T177 Transmission, Input Seal for Jeep Models with NP219, NP208, NP228, NP229 or NP242 Transfer Case or T176, T177 Transmission, Crown Blocking Ring Set (1st, 2nd, 3rd, & 4th), 3rd & 4th Gear Synchronizer Assembly for 1980-1986 Jeep CJ & J Series with T176 or T177 4 Speed Transmission, 1st & 2nd Gear Synchronizer Plate; 1980-1986 Jeep CJ & J Series with T176 or T177 4 Speed, Crown Second Gear for T176 Manual Transmission - 33 Tooth, Shift Knob Kit for Jeep Dana 300 Transfer Case, Transmission Overhaul Repair Kit, T17 1980-1986 Jeep CJ, SJ and J-Series with T-176 or T-177 Transmission. 2.030 The CVT also works best in small cars with small engines, which is why most trucks and large SUVs continue to use traditional automatics. This allows the fifth gear to spin much faster than the gear thats delivering power. United Italic Cond Welcome back to Gearhead 101 a series on the basics of how cars work for the automotive neophytes out there. hb```a``rb`e`pad@ AFf,|OjqNaFucOSwaG]IReHT-:**k !@$v=(/'C'c(t! If you continue to use this site we will assume that you are happy with it. As mentioned above, gears 1-5are mounted on the output shaft via ball bearings. When the clutch is disengaged, it disconnects power flow between the engine and transmission gearbox. A typical gear ratio is 0.78:1. Please copy/paste the following text to properly cite this HowStuffWorks.com article: Today's car transmissions come in standard, manual, CVT and even automated manual. At the other end of the shift rod is a shift fork that holds the synchronizer collar. 643072603 The dual-clutch automatic operates via two clutches, which are controlled by the car's computer network and require no input from the driver. / Trade Gothic LT Std You dont need to send as much power from the engine to the wheels, because the car is already moving at a brisk pace. Adobe InDesign CC 2017 (Macintosh) Thats what the cars drivetrain of which the transmission is a part of does. (Well go intohow all the gears can always be spinningwhile only one of them is actually delivering power to the drivetrain here in a bit.). Would the entire transmission explode? %PDF-1.4 % Synchronizer collars/sleeves. The Art of Manliness participates in affiliate marketing programs, which means we get paid commissions on editorially chosen products purchased through our links. Okay, so you understand the need to keep a vehicle running in its power band so that its working effectively. Automakers say that automatic transmissions are simply better in every way, especially the CVT and dual-clutch options. The picture to the left shows how, when shifted into first gear, the purple collar engages the blue gear to its right. 2.020 When you push the knob forward to engage first gear, you are actually pulling the rod and fork for first gear back.
The outer portion of the collar then slides so that the dog teeth can engage the gear. Brett April 5, 2017 Last updated: September 25, 2021. Why Are Manual Transmissions Disappearing? endstream endobj 416 0 obj <>stream On most five-speed vehicles, there are threeshift rods. As you move up in gears, the gear ratio decreasesuntil you reach the point that the input and output shafts are moving at the same speed and delivering the same amount of power. Heres a short little clip that does a great job explaining whats going on (starts at about 1:59 mark): Gearshift. To increase the speed of the output shaft, we need to shift up to second gear. HWYs}W$!l@v}eR%0J9$$!kK2w98 Marshall Brain & Cherise Threewitt endstream endobj 415 0 obj <>stream OpenType - PS xmp.iid:80c69d30-0d46-4d11-9acb-a483a14d2baf Helvetica LT Std
Or lets say the two gears connected to each other are the same size (10 teeth and 10 teeth). uuid:503d70e0-d27a-5247-99e8-eda0f0fa8dbd The output shaft has freely rotating gears that are mounted on it by ball bearings. Whenever a car is neutral none of the synchronizer collars are enmeshed with a driving gear. Fits1980-1983 Jeep CJ51980-1986 Jeep CJ71981-1986 Jeep CJ8 Scrambler1980-1986 Jeep SJ, J-Series, Fits1980-1983 Jeep CJ51980-1986 Jeep CJ71981-1986 Jeep CJ8 Scrambler, Fits1980-1983 Jeep CJ51981-1985 Jeep Scrambler1980-1986 Jeep CJ71981-1983 Jeep Wagoneer, Fits1976-1978 Jeep CJ51979 Jeep CJ71980 Jeep J101980 Jeep Wagoneer, Fits1981-1985 Jeep Scrambler1980 Jeep Wagoneer1980 Jeep Cherokee1980 Jeep J201981-1983 Jeep CJ5, Fits:1980-1983 Jeep CJ51980-1986 Jeep CJ71981-1986 Jeep CJ8 Scrambler, Fits:1980-1983 Jeep CJ5 w/ T176, T177 Transmissions1980-1986 Jeep CJ7 w/ T176, T177 Transmissions1981-1986 Jeep CJ8 w/ T176, T177 Transmissions1980-1986 SJ, J-Series w/ T177 Transmission, Fits1981-1985 Jeep CJ8 Scrambler1980-1986 Jeep CJ71980-1983 Jeep CJ51980-1986 Jeep SJ, Fits1980-1983 Jeep CJ5 w/ T176, T177 Transmission1980-1986 Jeep CJ7 w/ T176, T177 Transmission1981-1986 Jeep CJ8 w/ T176, T177 Transmission1980-1986 Jeep SJ, J-Series w/ T177 Transmission, Fits:1980-1983 Jeep CJ5 w/ Tremec T1771980-1986 Jeep CJ7 w/ Tremec T1771981-1986 Jeep CJ8 Scrambler w/ Tremec T177, Fits:1976-1986 Jeep CJ71981-1985 Jeep CJ81966-1983 Jeep CJ51967-1971 Jeep C101 Commando1972-1973 Jeep C104 Commando1967-1972 Jeep SJ & J-Series, Fits1981-1985 Jeep Scrambler1981-1983 Jeep CJ51987-1988 Jeep J20, Fits1980-1983 CJ5 w/ T176, T177 Transmissions1980-1986 CJ7 w/ T176, T177 Transmissions1981-1986 CJ8 w/ T176, T177 Transmissions1980-1986 SJ, J-Series w/ T177 Transmission, Fits1980-1983 Jeep CJ5 w/ T176, T177 transmission1980-1986 Jeep CJ7 w/ T176, T177 transmission1981-1986 Jeep CJ8 Scrambler w/ T176, T177 transmission1980-1986 Jeep SJ, J-Series w/ T177 transmission, Fits:1966-1984 Jeep CJ1966-1971 Jeep C101 Commando1966-1984 Jeep SJ & J-Series, Fits:1980-1986 Jeep CJ1972-1973 Jeep C104 Commando1971-1975 Jeep SJ & J-Series, Fits1980-1983 Jeep CJ5 w/ T176, T177 Transmission1980-1986 Jeep CJ7 w/ T176, T177 Transmission1981-1986 Jeep CJ8 w/ T176, T177 Transmission1980-1986 Jeep SJ, J-Series w/ T177 Transmission1980-1986 Jeep J-Series w/ T177 Transmission, Fits 1980-1983 Jeep CJ5 w/ T176, T177 Transmissions1980-1986 Jeep CJ7 w/ T176, T177 Transmissions1981-1986 Jeep CJ8 w/ T176, T177 Transmissions1980-1986 Jeep SJ, J-Series w/ T177 Transmission, Fits:1976-1979 Jeep CJ5 with T150 Manual Transmission 2nd & 3rd Gear1980-1983 Jeep CJ5 with T176, T177 Manual Transmissions 3rd & 4th Gear1976-1979 Jeep CJ7 with T150 Manual Transmission 2nd & 3rd Gear1980-1986 Jeep CJ7 with T176, T177 Manual Transmissions 3rd & 4th Gear1981-1986 Jeep CJ8 Scrambler with T176, T177 Manual Transmissions 3rd & 4th Gear1980-1983 Jeep Wagoneer SJ with T177 Manual Transmissions 3rd & 4th Gear1984-1986 Jeep Grand Wagoneer SJ with T177 Manual Transmissions 3rd & 4th Gear, Fits1980-1983 Jeep CJ5 1980-1986 Jeep CJ71981-1986 Jeep CJ8 Scrambler 1980-1986 Jeep Grand Wagoneer SJ, J Series, Fits1980-1983 Jeep CJ5 w/ T176, T177 Transmissions1980-1986 Jeep CJ7 w/ T176, T177 Transmissions1981-1986 Jeep CJ8 w/ T176, T177 Transmissions1980-1986 Jeep SJ, J-Series w/ T177 Transmission, Fits:1980-1986 Jeep CJ1980-1986 Jeep SJ & J-Series.