Transmission Failure problems of the 1996 Chevrolet K1500

Transmission failure due to faulty sun shell I'm writing to inform you of a serious transmission problem which needs to be addressed. For the second time in 3 and a half years, I've had a gm 4l60-e transmission rebuilt because of the sun shell shearing off and damaging internal parts inside the housing on two separate vehicles. After doing a little research and finding 3 neighbors who had the same problem, it was clear there was a pattern. Additionally, information on the internet confirmed my suspicion, as gm is obviously aware of the inherent problem, and transmission centers are very aware of the problem, and hence routinely stock kits necessary to repair the damage from the failed shell, not to mention the tcc valve issue. I've owned a number of gm vehicles and own two now a 1996 K1500 pickup and a 1999 tahoe. As mentioned above, both had the same defect and consequently needed to be rebuilt not an inexpensive item. While I support american auto manufacturers, I am sadly disappointed in the failure of not only the defective part, but also in gms commitment to their loyal customers. In 2004, gm finally addressed the faulty sun shell and has begun putting in a stronger machined (not welded) part in those transmissions. However, for the majority of Chevrolet truck owners pre 2004, we have been stuck with this defective part and consequently replaced/rebuilt the transmissions due to its failure.

Srta transmission failed four times prematurely. The second failed due to burned gears. The third failure was due to cracking of reverse gear. The fourth failure was due to the third gear not shifting.