8F35 8F40 Valve Body Repair SHIFT KIT® | TransGo

Product Description

TransGo SHIFT KIT® valve body repair kit for 2019-on 8F35 and 8F40 transmissions. An easy fix for major drivability complaints.

Corrects / prevents / reduces

• Erratic main line pressure
• Selectable one way clutch (SOWC) failure
• TCC shudder or slip, with or without codes, as well as insufficient clamping force under load
• Overheating due to worn lube regulator
• Unexplained shift complaints including binding, flaring or missing shifts with and without burnt frictions

What's included

• Drop-in TCC regulator valve assembly
• Drop-in pressure regulator and shuttle assembly
• Oversize lube limit valve (Requires 8F35-SOWC-TK)
• Oversize SOWC limit valve (Requires 8F35-SOWC-TK)
• Drop-in latch valve
• Oversize TCC pulse damper (Requires 6T-PDP-TKC)
• Cooler flow by-pass delete

Required tool kits

• 8F35-SOWC-TK tool kit: reusable high-speed steel reamer with reversible guide for use with the SOWC and lube valves.
• 6T-PDP-TKC universal pulse damper tool kit: for use with 8F35, 6T40 series and 6T70 series pulse dampers.

Identify your valve body

• 8F35, 8F40 (fits): four large shift solenoids and one small solenoid at the bottom.
• 8F24 (does not fit): five large shift solenoids at the bottom.
• 8F57 (does not fit): five large shift solenoids at the bottom and a flat, rectangular casting at the park pawl valve area.

Instructions and resources

• Installation instructions (PDF)