Doc's Diesel Chevrolet/GMC 6.6L Duramax 10L1000 L5P Transmission Service Kit 2020-2025

Bad buy

Well I’m giving a 1 star due to the gasket. Put less that 200 miles after changing filter, gasket and fluid, had to dump it due to the pan gasket leaking. Was torqued to proper spec and proper sequence. Had to purchase more fluid and a new gasket. My advice is to stay away from the cheap gasket and use an OEM gasket. Was really hoping to leave a better review but ended up having to spend double the money.

Bottom pan gasket junk ,

Almost perfect

The gasket you get in the kit isn’t nearly as good as the reusable factory gasket that would be my only concern with the kit.