Remove the six rear servo retaining bolts (65) that retain the rear servo cover (66) to the transmission case. See Figure 2-26. Remove the rear servo cover and rear servo cover gasket (67) from the case as shown in Figure 2-27. Note that the cover will be under spring pressure from the rear accumulator spring (78). Discard the gasket.. Decided to try the servo pin replacement myself to at least rule that out. Based on what I read all I had to do was drop the transmission pan and the servo pin was held in with 6 bolts. Sounded pretty easy and I found a replacement servo for cheap from Monster. I have the pan dropped and was working on removing the 6 bolts holding in the servo.
![[DIAGRAM] Gm Turbo 350 Transmission Diagram](https://www.bartonekdragracing.com/wp-content/uploads/2013/08/th350_side.png "[DIAGRAM] Gm Turbo 350 Transmission Diagram")
![[DIAGRAM] Chevy Reverse Servo Diagram](https://parts.nissanusa.com/images/parts/nissan/fullsize/D22U_US_315A_8.jpg "[DIAGRAM] Chevy Reverse Servo Diagram")
![[DIAGRAM] Chevy Reverse Servo Diagram](https://www.alltranz.com.au/media/productimages/16580.jpg "[DIAGRAM] Chevy Reverse Servo Diagram")
Heres a 4L60E Technician Guide. its 150 pages and seems to be a complete guide on everything about the 4L60E. its 21 MB I found it on google but heres the.. a. Disassemble OE low/reverse servo assembly. b. Discard OE spacer and E-clip. c. Inspect reverse piston for cracks and replace if necessary. NOTE: Do NOT reuse a cracked piston. 2. Installation & Assembly a. Reassemble the low/reverse servo with Sonnax components as shown above. b. Sonnax flat washer is installed with rounded edge against.