GM 6L45 Archives - Transmission Digest
Common problems with uncommon solutions: 6L45 no-move or slipping forward

A 2010 3.0L Cadillac AWD CTS using a 6L45 transmission comes into the shop with a no-forward complaint. This particular vehicle is known for having the output shaft suffer from fretting, in which the output shaft to transfer case input shaft spline will strip and cause a no-move (figures 1 and 2). Sometimes, due to

Superior Transmissions introduces pump components for GM 6L transmissions

Transtar highlights a new line of Superior Transmissions pump components that fit all variations of GM 6L45/6L50 and 6L80/6L90 units. According to the company, these can be installed in conjunction with the STL012 pump upgrade kit or any O.E. Main Pressure Regulator valve, as well as all aftermarket P.R. valve repair kits, including oversized internal

Sonnax GM 6L45-6L90 Pump Vane

The pump vane is a replacement for rebuilding pump rotors.

Vacuum Testing GM 6L45, 6L50, 6L80, 6L90

From the TASC Force we reprint a series of in-depth test instructions for checking the serviceability of valve bodies.