I'm sure if you had an issue later on , dealer would use it against you.... I set mine up the same way... cut the mid pipe before the 3rd cat , ran 2 2.75 pipes , 1 X pipe , straight out back with 2 Flowmaster FX series mufflers .... Sounds great...
FlipZ71 started following Low oil pressure (15 psi) !!, , Can GM diagnostics read that I tried a burnout with my truck? and and 3 others
FlipZ71 replied to Westwildcat's topic in 2014 - 2018 Chevy Silverado & GMC SierraSo you did a burn out and damaged your truck ? Disabled traction control before burnout ?
Let me clarify... mine vibration was only in 4 wheel drive. The front drive shaft is what had to be clocked correctly. Shouldnt be any reason to remove the rear. But yes all I did was unbolt the drift shaft on pinion end , rotated the yoke , bolted it back up , problem gone
Knowles , On my 2015 I had started with the same set up . I had the same vibration but only when I put it in 4 wheel drive. The issue turned out to be the drive shaft was not marked before removing. So when they reinstalled it , was not clocked correctly. The lift instructions for zone 4.5 state this step clearly. The install shop never read it. Anyway after I flipped it issue was gone. This may not be your issue but it's a start. Read through the instructions and question everything you'll find it. Oh... and I also had the additional leaf but used a smaller block.... rear pinion angle is good.
My 2015 5.3 at 80K miles Lowest I see on mine is 30 Hot. I do run a 5w30 but when I switched there wasnt much of a difference in pressure , 2psi. Have a buddy with 2018 , 6.2 8spd His drops between 15 and 20 when hot .
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