New oversize S4 regulator valve for GM 8L45 and 8L90

Solves significant wear issues at the S4 regulator valve position.

Looking to address common complaints with your 8L45 or 8L90 transmission? Join Glenn Troub as he introduces the TransGo SK 8L90 SHIFT KIT valve body repair kit, your ultimate solution to a range of transmission issues. Whether you’re experiencing TCC instability, harsh shifts, or codes like PO218 and PO741, this kit has you covered.

Key Features: Designed to fit 2015-on 8L45 and 8L90 transmissions, the SK 8L90 SHIFT KIT® effectively corrects, prevents, and reduces a variety of transmission woes. From overheated converters to cracked VB worm tracks and loss of converter feed, this kit tackles the most common complaints head-on. Say goodbye to high line harsh shifts and low line soft slipping shifts with the comprehensive set of components included in the kit such as drop-in PR and shuttle valve line-ups, TCC regulator valve, and S2, S3, and S4 regulator valves, ensuring a seamless installation process. With oversize converter feed limit and AFL valves, you can expect optimal performance and longevity from your transmission.