Hi all,
2011 5.3/6L80 out of same vehicle. I have a bad shake/shudder when I get above 65 mph. Front suspension and steering components have all been replaced. I had the DS rebalanced just last week. still have this stupid shudder/shake that shakes the whole cab. Was not there when I first swapped. This is driving me crazy and makes me not want to drive the truck.
Is there any way to totally remove lock out to see if it is my torque converter that is messed up? If so, can someone show me how? I have HP Tuners.
Thanks for any help, this is driving me nuts.
Thanks,
BenSTOCK TUNE FOR C10 ENGINE - turned into curent GMC tune Oct 3 2020.hpt