How to Remove a Transmission From Chevrolet Carsby Contributing Writer
The transmission in the Chevrolet car could be replaced or rebuilt when it malfunctions. Either way, you must remove it from the vehicle. It is easier to remove the transmission if you have a lift, but if not, you can remove it on the ground, using a floor jack and jack stands. The transmission is a front-wheel drive, and you must remove the CV axles before you can remove the transmission. It is a good time to replace the axles if they have been clicking.
Under The Hood:
- How to Remove a Transmission From a 1991 Z28 Camaro
- How to Remove the Transmission in a K1500
- How to Remove the Transmission on a Silverado
- How to Remove the Transmission on a 2001 Cavalier
- How to Remove a Transmission on a Camaro
- How to Remove the Transmission in a Chevy Malibu
- How to Remove the Transmission From a Lumina
Set the parking brake on the Camaro, and then disconnect the battery's negative cable using a battery terminal wrench.
Raise the front end up using the floor jack and support the car on jack stands, placing one underneath the frame on either side. Do not place the jack stands so far back that they interfere with the removal of the transmission. Lift the car high enough in the air to allow the transmission to clear the underside while the car rests on the floor jack.
Jack the rear end up and place the remaining two floor jacks under the rear axle, out near the leaf springs. Lower the rear end onto the jack stands.
Use a socket set to unbolt the drive shaft. Wrap the U joints with electrical tape as soon as they clear the yoke so they don't come out of the drive shaft.
Slide the floor jack under the transmission, and raise the jack head up until it's resting against the underside of the transmission.
Use the socket set to unbolt the transmission mount. Pull the mount out by hand and set it aside.
Disconnect the wiring harness from the side of the transmission. You may need a pocket screwdriver to unclip the harness connectors.
Remove the bolt holding the transmission dipstick in place, using the socket set, and then remove the dipstick.
Unbolt the transmission from the engine, beginning at the bottom of the bell housing and working your way upward. Use the 36-inch socket extension and universal socket extension to reach the bolts at the top of the bell housing.
Pry the transmission away from the engine carefully, using the pry bar. Have an assistant guide the transmission back from the other side and help steady it over the jack once it comes off the engine.
Lower the transmission on the floor jack until the jack is as low as it will go; then roll it out from under the Camaro. This will take two people in order to prevent the transmission from falling off the jack.
Items you will need
Battery terminal wrench
4 jack stands
36-inch socket extension
Universal socket extension
Ensure the truck is parked on a flat and level surface. Chock the back wheels to prevent the truck from rolling back. Set the parking brake.
Open the hood for access to the engine compartment. Disconnect the transmission dipstick tube by unscrewing the small bolt at the bottom of the tube. Raise the tube straight up and out of the engine compartment.
Place a jack under the front crossmember of the truck. Raise the truck high enough to place jack stands under the crossmember. Lower the truck on to the crossmember.
Locate the transmission under the truck. Disconnect the shift linkage on the driver side of the truck by unbolting the small nut holding it in place. Pull the vacuum hose out by pulling it straight out. Disconnect the speedometer cable by unscrewing it from the driver side of the transmission.
Unscrew the transmission cooler lines from the bottom passenger side of the transmission with a line wrench. Place a small drain pan under the lines to prevent getting transmission fluid on the ground. There will be two lines to unscrew.
Locate the drive shaft and unscrew the two hanger bolts with a socket wrench. There will be two hanger bolts to disconnect. Pull the driveshaft out of the transmission.
Place the jack under the transmission. Raise the jack up to the transmission.
Unscrew all the bolts holding the flywheel to the engine. There will be a series of bolts around the bell housing to undo.
Unscrew the four bolts holding the torque converter to the bell housing. There will be four bolts to unscrew. The bolts may be difficult to access. Place a socket wrench around the crankshaft pulley and turn the crankshaft to spin the flywheel. This will make the bolts easier to access.
Inspect the transmission to ensure all the bolts and wires are disconnected. Slowly raise the transmission with the jack to free it from the engine. Pull the transmission away from the engine and out from under the truck.
Items you will need
Line wrench set
Jack up the front of the Silverado with a floor jack and place jack stands underneath the frame to support the Silverado's weight, then jack up the rear and place one jack stand under each side of the differential.
Use a wrench to remove the two U-bolts which hold the driveshaft to the differential. Pull the driveshaft away from the differential, then pull the driveshaft towards the back of the Silverado until the driveshaft slides out of the transmission.
Open the hood and disconnect the transmission's dipstick tube from the side of the engine. The dipstick tube is located on the passenger's side of the engine, and is secured to the engine with a single bolt that must be removed with a wrench. Once the bolt has been removed, pull the dipstick tube straight up to remove it from the transmission.
Remove the speedometer cable and the shift linkage from the driver's side of the transmission. The speedometer cable attaches to the transmission with a single nut located at the end of the cable. Turn this nut with a wrench, then pull the cable out of the transmission. The shift linkage attaches to the transmission with a single bolt and nut. Attach one wrench to the bolt's head and a second wrench to the nut, twist either the bolt or the nut in a counterclockwise direction until both can be removed, then pull the linkage away from the transmission.
Remove the single vacuum line from the vacuum diaphragm. The vacuum diaphragm is located on the driver's side of the transmission, next to the transmission's pan. The line can simply be pulled off of the vacuum diaphragm.
Position a transmission jack underneath the transmission, then raise the jack until the jack fits securely under the transmission.
Using a wrench, remove the bolts that attach the transmission to the engine and the torque converter to the flywheel. There are several bolts which slide through the transmission's bell housing into the back of the engine. The four bolts that attach the torque converter to the flywheel are accessible from underneath the Silverado where the engine meets the transmission. The crankshaft pulley must be periodically turned with a deep socket wrench to access all four bolts.
Lift the transmission with the jack until it lifts slightly, then slowly pull the transmission with the jack towards the rear of the Silverado until the transmission disengages from the engine.
Items you will need
Deep socket wrench
Disconnect the negative battery cable, using the appropriate wrench. Set it aside, ensuring that it does not touch metal. Loosen the clamp on the air duct hose, located on the intake plenum, using the screwdriver. Pull the hose off the intake. Install the engine hoist, using the appropriate sockets.
Unplug the wiring harness connectors from the transmission and the PNP switch, located on the transmission. Remove the upper transmission-to-engine bolts and one stud, using the appropriate sockets. Loosen the lug nuts, using the lug wrench, but do not remove them.
Jack up the vehicle, using the floor jack, and support it with the jack stands. Continue removing the lug nuts, using the lug wrench. Remove the wheels. Remove the left-front splash shield, using the appropriate socket. Disconnect the engine strut from the lower engine mount strut bracket, using the appropriate socket. Remove the wiring harness from its retaining clips.
Remove the steering gear mounting bolts, then tie the steering gear into place, using mechanic's wire. Unplug the wheel speed sensor wires from both front wheels and the frame. Separate the ball joints from the steering knuckles, using the ball joint remover tool.
Unbolt and remove the front exhaust pipe. Remove the front anti-lock brake system (ABS) wheel speed sensors and their wiring harnesses from the suspension support. Disconnect both lower ball joints, using the ball joint remover tool. Remove the tie rods from the steering knuckles by unscrewing them. Count the number of turns it takes to remove them, as they must go back on exactly that number of turns, else you will need to get the vehicle aligned. If the brake line runs along the support frame, remove the brake pipe from its retainers.
Remove the front suspension support brace, using the appropriate socket. If you are using a lift, lower the vehicle until the front suspension cross-member rests on the jack stands. Remove the front suspension cross-member mounting bolts, using the appropriate socket. Raise the vehicle off the front suspension cross-member, using the floor jack. Remove the lower control arms, using the appropriate sockets.
Remove the two bolts from the transmission brace. Disconnect the shift cable from the shift linkage, using the screwdriver or appropriate socket, depending on the retaining bolt or screw. Remove the cable from its bracket. Remove the flywheel inspection cover, using the appropriate socket.
Remove the starter wiring, using the appropriate wrench. Put the nut back onto the stud, so you don't lose it. Unbolt and remove the starter. Match-mark the position of the torque converter on the flywheel, using the chalk. Remove the bolts holding the torque converter onto the flywheel, using the appropriate sockets.
Slide the drain pan under the under the transmission cooler lines, then remove the nut that holds the bracket onto the transmission case, using the appropriate socket. Unplug the vehicle speed sensor's wiring harness from the sensor, located on the transmission. Remove the CV axles from the transmission. Remove the transmission mount bolts.
Lower the transmission and the engine, using the engine hoist, just enough to facilitate removal of the transmission. Raise the vehicle, using the floor jack. Slide the drain pan under the transmission pan. Remove the transmission pan, using the appropriate socket, by loosening all the bolts first, then removing the bolts starting from one corner, and working your way to the last corner. Allow the fluid to drain as the pan starts to come off the transmission.
Reinstall the transmission pan. Support the transmission, using the floor jack. Remove the nut holding the transmission to the engine. Separate the engine and transmission, then, balancing the transmission on the jack, roll it out from under the vehicle.
Items you will need
Set of wrenches
Set of sockets
Ball joint removal tool
Disconnect the Driveshaft
Raise the vehicle and support the vehicle with jack stands, according to instructions listed in the owner's manual.
Locate the driveshaft and the rear axle flange. The driveshaft is the long steel tube that extends from the rear of the transmission to the rear axle. The flange will be the steel portion of the rear axle that is bolted to the driveshaft. Paint a reference line at the rear of the driveshaft and on the flange on the rear axle. You will be removing the driveshaft, and it must be installed in the same relative position.
Disconnect the U-joint by removing the U-bolts or straps that connect it to the rear axle drive yoke.
Lower the driveshaft so it can slide underneath the rear axle. Slide the driveshaft backward and disengage it from the transmission.
Disconnecting the Transmission
Remove the trim plate and the shifter boot, located in center console surrounding the shift lever. These parts are usually retained by screws on older models which can be removed to remove the trim plate and shifter boot. New models utilize hidden clips that can be disengaged by gently prying the trim plate away from the center console.
Disconnect the speedometer cable from the rear of the transmission. It will be connected to the transmission tailhousing just below the shifter.
Disconnect the backup light from the transmission by disconnecting the long steel rod that extends from the drivers side of the transmission to the backup drive linkage mounted between the transmission and the vehicle's frame.
Remove the bolts that connect the transmission crossmember to the frame. The crossmember is the steel beam bolted to both sides of the frame and the transmission tailhousing.
Remove the bolts that connect the transmission tailhousing to the transmission crossmember. Remove the crossmember from the vehicle.
Removing the Transmission
Disconnect the shift rods from the side of the transmission by removing the retaining pins. They will be the steel rods extending from the shifter that connect to the levers on the drivers side of the transmission.
Remove the bolt that connects the shifter to the transmission tailhousing. Remove the shifter from the vehicle with the shift rods attached.
Support the transmission with a transmission jack placed underneath it. Raise the jack enough to take the weight of the transmission off the engine.
Remove the four transmission to bellhousing bolts. The bolt heads will be located on flanges extending from the front of the transmission.
Slide the transmission rearward to disengage the input shaft from the bell housing.
Lower the transmission jack and remove the transmission from the vehicle.
Items you will need
Pull the hood release lever inside the Malibu and set the hood support bar. Disconnect the battery cables from the terminals on the battery with the wrench.
Place the car jack under the frame behind the left front or right front tires. Raise the corner of the car off the ground. Set a jack stand under the frame and lower the car jack. Repeat this step on the other side to place the car on the jack stands.
Connect the chains from the engine hoist to the engine. This will help to support the engine when it is time to take off the transmission.
Remove the bolts from each of the motor mounts with the socket wrench. This will prevent damage to the engine when removing the transmission.
Loosen the lug nuts on the two front wheels with the air gun and remove the lug nuts from the studs. Take off the wheels and set them aside. Disconnect the splash shield on the driver's side of the vehicle.
Disconnect the shift cable and all of the electrical connections from the transmission. This includes the electrical connector that is on the speed sensor. Take off the air intake duct.
Place a tray or bucket under the transmission and drain the power steering fluid. Remove the bolts that are used to secure the power steering system.
Remove the bolts that are on the sides and front of the transmission drain pan with the socket wrench. Loosen the bolts at the rear, but do not yet take them out.
Pry the transmission pan away from the transmission with the flat head screwdriver. The transmission fluid will begin to drain into the bucket. Tighten the side and front bolts to secure the transmission pan back on the transmission.
Disconnect the suspension support on the left and right side of the vehicle with the socket wrench. These are located on the sides of the transmission.
Position the car jack under the transmission and loosen the bolts from the transmission mount. Remove the bolts and begin lowering the transmission out of the vehicle.
Items you will need
Bucket or tray
Disconnect the battery cables to prevent electrical shock.
Remove the portions of the car's mechanical system that are above the transmission. This includes the hood and cooling facilities. Remove the hood by removing all but one of the brackets on the springs then carefully sliding the hood off the mount with a partner. The cooling facilities can also be removed by loosening and removing the bolts attaching it to the body of the car with a wrench.
Place the engine support fixture underneath the engine, then loosen and remove the bolts on the engine mounting. The engine support will prevent damage to the engine while you're removing the transmission.
Remove the first features of the transaxle system. This includes the transaxle fluid indicator, range selector and modular pipe. These can be removed with a wrench. Once these pieces are removed, disconnect the air intake duct and electrical connectors from the transxle system by pulling them out of their inputs on the transaxle system.
Raise your Lumina up on a car lift so you can work easily from underneath it. Remove the two front wheels and the driver's side splash shield to make it easier to remove the transmission.
Remove the steering gear fixtures including the heat shield and bolts and screws. Remove the exhaust crossover pipe and disconnect the front lower arm assemblies from the suspension and strut.
Drain the power steering fluid then loosen and remove the bolts holding the power steering fluid system in place.
Place jacks under the drivetrain and front suspension frame support them during the removal process. With these supported, remove the bolts holding both systems to the car's body. Once they are unbolted remove them from the car.
Separate the electrical connector from the speed sensor by pulling the cables loose from the connector. Once the electrical connector is removed you can begin to remove all the other components that are connected to the transaxle, forming the transmission. This includes the drive axles, transaxle converters, the starter and the torque converter.
Secure the transaxle system on a jack and begin removing the nuts attaching the transaxle bracket to the body of the car. Once all the brackets and connections have been removed you can remove the transaxle system transmission from the car.
Items you will need
Engine support fixture