shift kit problem
if not the tranny needs to come out and the reverse reaction sun shell replaced.
http://www.transmissioncenter.net/4L60E.htm
#17. 4L60E heavy duty reaction shell (1998 up new style). Cost $39.00
Qty 12345
√ #17X. 4L60E Extreme Duty "The Beast" reaction shell. Redesigned sun gear shell for the 700R4 / 4L60E transmissions by strengthening and reinforcing the neck collar spline area using thicker material. Known for loosing reverse, 2nd and 4th gears the 700R4 sun gear shell has a very high fatigue failure rate. This is the shell you want to install in a 700R4 or 4L60E that's behind a 300 plus horse power motor. This part holds in 2nd, 4th and reverse. (Not one broken in 2 years.) Cost $56.00
Qty 12345

