2018 GMC Denali Build

Charlie

Member
Mar 21, 2012
784
6
18
Which level did you go with and who’s going to be tuning it? My 8spd truck has the Chevy shake, feels like it is in the trans tuning or possibly the converter like some have had issues with. If dealer can’t do anything I’m hoping blackbear can clean it up.
 

WildChevys

In Valor There Is Hope
Sep 3, 2013
3,256
718
113
New Jersey
Which level did you go with and who’s going to be tuning it? My 8spd truck has the Chevy shake, feels like it is in the trans tuning or possibly the converter like some have had issues with. If dealer can’t do anything I’m hoping blackbear can clean it up.

Blackbear can’t tune the 8spd, afaik only HPT can


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Tiki

Well-Known Member
Jan 23, 2011
1,581
402
83
Which level did you go with and who’s going to be tuning it? My 8spd truck has the Chevy shake, feels like it is in the trans tuning or possibly the converter like some have had issues with. If dealer can’t do anything I’m hoping blackbear can clean it up.

There is a TSB out for it. Flush and refill.