None yet.
I have two gmc sierras the first one is a 2002 sierra ht with suncoast yellow paint and the 4.8 engine and 3.73 gear..it's a blast to drive! my other one is a 2004 sierra sl with the 5.3 engine and 3.42 gear.. both are short wheelbase regular cabs and both are very FAST! they handle like a sports car and from 0-60 the new mustangs don't have a chance.
Hay I have a 2003 sierra slt 5.3 with an after market 4.10 rear end gear and a positive traction clutch system. This is the best you should try this if you like your system now.
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