How to Remove an Automatic Transmission from Vehiclesby Contributing Writer; Updated June 12, 2017
Repairing the automatic transmission on a Vehicles is one of the most expensive repairs you will have to make. While a new or rebuilt transmission is costly, note that a large percentage of the repair bill comes from the labor required to remove the transmission and put in the new one. You can save yourself money by doing this yourself with the help of a friend. It will take about two hours and is completed with tools you may already have in your garage.
Under The Hood:
- How to Remove an Automatic Transmission from a Dodge Neon
- How to Remove the Automatic Transmission in a 1995 Chevy Blazer
- How to Remove an Automatic Transmission From a Chevrolet C5 Corvette
Park your Dodge Neon on a level surface. Raise the front of the vehicle with the jack and safely support it on two jack stands.
Remove the rear differential bolts with the ratchet set and push the drive shaft forward using a pry bar. Place a drain pan under the transmission then remove the bolt securing the drive shaft to the transmission with the ratchet set. Slide the drive shaft out of the transmission and set it aside. Plug the rear of the transmission with shop rags to keep transmission oil from leaking.
Disconnect the automatic transmission vacuum line with the wrench, then remove the transmission oil filler tube, speedometer cable, and wires connected to the transmission and the Dodge Neon. Use a wrench to disconnect the cooler line from the transmission.
Place the jack underneath the transmission and raise it enough to relieve the weight on the transmission mounts. Remove the rear transmission mounts and exhaust tube with the wrench and ratchet set. Keep the bolts and screws with their components.
Remove the bell housing bolts using a wrench and ratchet set. Remove the cover between the transmission and engine with the wrench.
Remove the torque converter bolts using the ratchet set. You will have to turn the converter using a pry bar to access all the bolts around the converter.
Place the jack underneath the transmission's oil pan. Pull the transmission off the engine and lower the jack, pulling the transmission away from the Dodge Neon.
Items you will need
Open the hood of the Blazer and disconnect the negative battery terminal. If your truck is equipped with an anti-theft audio system, turn off the lockout feature before attempting to disconnect the battery.
Place the floor jack under the frame of the truck and raise it until you can place jack stands under the frame. Repeat this step at all four corners of the Blazer.
Place the bucket under the transmission pan. Turn the bolts at the front and on the sides of the transmission drain pan counterclockwise to remove them. Loosen the rear bolts but do not remove them. Use a screwdriver to pry the transmission pan from the transmission. Allow the fluid to drain into the bucket.
Turn the front and side bolts of the transmission pan clockwise to secure it to the transmission.
Disconnect all electrical connections and the shift cable from the transmission.
Remove the driveshaft by removing the bolts from the driveshaft bracket. Once you are able to lower the back of the driveshaft, slide the front of the driveshaft out of the transfer case. On four wheel drive vehicles, complete this process for both driveshafts.
Disconnect the fuel system line fittings from the transmission.
Remove the torque converter cover and mark the torque converter.
Turn the bolts connecting the drive plate to the torque converter counterclockwise to remove it from the truck.
Place a jack under the engine and raise it to support the engine while disconnecting the transmission. You may wish to place a length of wood between the jack and the engine to more evenly distribute the weight.
Raise the transmission until you are able to remove the cross-member. The cross-member is connected with two large bolts that you need to turn counterclockwise with the appropriate socket.
Disconnect the wiring harness and fuel line brackets from the transmission.
Remove the transfer case shifter and put it in a safe place. You will need this when you install the new transmission.
Slide the transmission towards the rear of the truck to remove it from the engine block.
Items you will need
4 Jack stands
Bucket, at least a 5 quart capacity
Socket set, 1/2-inch drive
Raise the Corvette with a floor jack, and support the car with four jack stands. Open the hood and disconnect the negative battery terminal. Place the transmission in neutral.
Remove the rear wheel with a lug wrench. Disconnect the right-side muffler using a socket and ratchet.
Remove the tunnel closing panel, which is used to enclose the drive line from the bottom. There will be about 10 bolts that you will remove with a socket and ratchet. Remove all the flex plate to torque converter bolts after taking the access plug out of the rear bell housing. Use an extension for the socket and ratchet setup for the flex plate bolts.
Loosen the clamp holding the propeller shaft hub between the transmission and torque tube, using a pair of wrenches. Remove the shift cable with pliers, and position it out of the way.
Remove the transverse spring, which is part of the rear suspension, using a ratchet and socket. Disconnect the outer tire rod ends and lower shock absorber bolts. Remove the lower ball joints form the steering knuckles by removing the end nuts with a wrench. Place a support under the transmission.
Unbolt the rear member and cross member from the transmission and suspension, using an air impact wrench and appropriate metric sockets.
Separate the left and right half shafts from the differential, if required, using a flat-head screwdriver to gently pry them away from the differential. Support the half shafts using sturdy wire connected to the undercarriage of the car.
Lower the drive train slightly. Remove all the electrical connections by hand, or with assistance from a small flat-head screwdriver if necessary.
Lower the drive train until the oil cooler lines are exposed. Disconnect the oil cooler lines with a flared line wrench. Remove the five bolts from the drive line to the flywheel housing, using a socket and extension with the ratchet.
Pry the drive line from the engine with a large flat-head screwdriver, and lower the drive line to the ground.
Remove the remaining bolts holding the differential to the transmission, using metric wrenches.
Pry the differential apart from the transmission carefully, working around the circumference of the transmission. If necessary, use the large flat-head screwdriver to carefully separate the two units.
Items you will need
Battery terminal wrench
Ratchet and extensions
Air impact wrench
Large flat-head screwdriver
Small flat-head screwdriver
Metric flared line wrench