The 700R4 transmission is a Turby-Hydramatic with overdrive, and was introduced in 1981 for the 1982 Chevrolet vehicles. It was first seen in the larger car and truck lines. The 700R4 has two bellhousing bolt patterns -- one is the standard Chevy bolt pattern that fits small block engines from 262 to 400 cubic inches, and the other fits Vortec engines, truck big blocks from 366 to 502 cubic inches and V-8 diesel engines. It will also fit on the 3.3-, 3.8- and 4.3-liter engines. The 700R4 with the smaller bellhousing pattern fits the 2.5-, 2.8- and 3.1-liter V-6 engines.
Place the transmission on the floor jack or on a transmission jack (if you are using a lift). Jack it up until it lines up with the engine. Ensure that the torque converter is pushed fully into the transmission. Bolt the transmission up to the engine, using the long extension and appropriate socket. Tighten the bolts to 34 foot-pounds of torque.
Ensure that the lugs attached to the converter are be flush, and the converter is able to turn freely. Install the converter bolts and tighten them to 50 foot-pounds of torque.
Move the exhaust system back into place. Install the new driveshaft, using the appropriate sockets. Reconnect the parking brake cable. Install the transmission mount for the new transmission onto the crossmember. Reinstall the crossmember and tighten the bolts firmly, using the appropriate sockets.
Attach the shift linkage, using the screwdriver and your fingers. Reattach the speedometer cable, vacuum modulator line, downshift cable, throttle linkage and cooler lines on the transmission, using the screwdriver, appropriate line wrench and appropriate sockets.
Reinstall the skid plate, if your truck is equipped with one. Reinstall the flywheel cover. Install the transmission dipstick for the new transmission, using the appropriate socket. Reattach the downshift cable on the carburetor, using the screwdriver. Reinstall the shift lever knob and the boot. Fill the transmission with transmission fluid.
