66RFE OEM Transmission Rebuild Kit

The TransGo 8L90 Shift Kit Valve Body Repair Kit includes components required to address common issues in GM 8L45 and 8L90 transmissions.

Corrects, Prevents, Reduces

• TCC instability issues and overheated converter
• Secondary regulator circuit valve body worm track cracking
• Loss of converter feed
• Codes P0218 and P0741
• High line pressure and harsh shifts
• Low line pressure and slipping shifts
• Broken hard parts
• Low cooler flow

Includes

• Drop-in PR and shuttle valve lineup
• Drop-in TCC regulator valve
• Drop-in S2, S3, and S4 regulator valves
• Oversize converter feed limit valve
• Oversize AFL valve

Requires

• AFL-G2-TK Tool Kit (used for multiple GM and front-wheel drive 6-speed kits)