Hi i have a 2000 GMC sierra and i can not set shift firmness for some reason it dosnt even have it as an adjustable parameter. I have 33in tires and i cant even get them to turn on wet pavement. Iv done update after update and it seems to do nothing. i have version 1r04c. Is this the most recent ?? What can i do to "unleash " my truck" everything iv read has said this is a good product but i have yet to see it . Please help i do not want to return it .
, Thanks
Cannot set Shift firmness
- mikel
- Posts: 58726
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
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Re: Cannot set Shift firmness
is the speedo calibrated for the tire size?
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]