Operation CHARM: Car repair manuals for everyone.

A/T - Slipping in Reverse or No Reverse

Number: 83-T-55

Section: VIIc

Date: June, 1983
Subject: REVERSE INPUT PISTON DISHING - ALL THM 700-R4

FIGURE 1:




TO: ALL CHEVROLET DEALERS


When servicing any THM 700-R4 transmission for a condition of slipping in reverse or no reverse, be certain to check the reverse input piston for:

1. Damaged lip seals.
2. Piston dishing (see Figure 1).
3. Piston pad wear.
If the reverse input piston has any of the above conditions replace it.