Beau Hansen, Author at Transmission Digest
Common failures on the GM AW55-50SN

GM’s AW55-50SN, otherwise known as the AF33 transmission (figure 1, above), is known for its placement in vehicles including the Chevrolet Equinox and Captiva, the Pontiac Torrent and the Saturn Vue. Versions of this transmission can also be found in SAAB, Volvo and Nissan vehicles. This unit began being produced in 2000 and ended production

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

An Inexpensive Fix for the 4R70W

The bearing that is being used in this updated carrier is exactly like the one Ford uses in their 5R110W transmission for the front planetary. If your shop can lay hands on extra captured needle bearings, the fix is easy. Knock out two small pinion gears and you gain easy access to the bearing for replacement.