2015 gmc Denali 1500 4x4

karltonp81

New Member
Nov 19, 2017
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0
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I've searched guys . Trying to find out what all I need for a 1-2 inch rear drop . Do I just need the shackles ?
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karltonp81

New Member
Nov 19, 2017
4
0
1
49
Wondering what all I can do to this without losing warranty . Called gm dealer on full exhaust and they said that it should be no problem. I'd like to get a tune .

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dszx13

Well-Known Member
May 28, 2014
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minden, la
Dealers will work with you if it's tuned. I know the one I work at will. But if something happens and gm wants the parts like the ecm, they can tell if it's been tampered with and the will void the repairs and customer will have to pay

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