Thm 700r4 Transmission Diagram

It is very common that after you get done with one of this units it will not want to upshift into 4th gear.

Thm 700r4 transmission diagram. The thm 700 r4 transmission is a fully automatic unit consisting of a 3 element torque converter with the addition of a converter clutch. Thm 700 r4 4l60 1982 1986 atsg automatic transmission service group pdf free online. The easiest way to identify a 700r4 underneath of the car is to look at the bolts. Automatic transmission service group technical service information 7 change.

Along with the thm200 4r general motors thm700 r4 automatic transmission was the last of gm s turbohydramatic transmission series. The next 2 or 3 letters identify the model of the transmission these numbers tell us the application engine size wiring type and solenoids. If you find 2 letters the transmission is made between 1982 1985. Using the pan bolt pattern as well as the number of bolts is the easiest way to achieve insure proper 700r4 transmission identification.

If you have a clear view of the transmission count the bolts. Transmission fluid cooler lines on the 700r4 the bottom fitting on the right side of the transmission is the out line to the cooler and the top fitting is for the return line from the cooler. 4l60es manufactured after 1995 use snap in connections instead of. The last way to identify if it s a 4l60 or a 700r4 is to look at the rear of the transmission for the aux tv cable.

This is a video of a thm 700 r4 transmission. If you find 3 letters the transmission is made between 1986 1993. Beginning on january 15 julian date 015 1984 all thm 700 r4 transmissions were built with a new input housing assembly as shown in figure 6. Start of production for 1985 all input housings were also built with an added air bleed cup plug as shown in.

These fittings are 25 in 6 4 mm pipe thread and can include an adapter from the factory for threaded steel lines in a sae size. My repair kit of choice for this unit is.