I've been having pretty bad wheel hop lately, mainly from 70ish-80ish. I started small and had the tires rebalanced and rotated them. That helped very little. So my bext thought is pinion angle but I haven't made any "major" changes to the suspension...all I've done is pull the lift blocks from the rear.
Any ideas?
T-RAV99 GMC | 5.3 | Skinny White Guy Tuned
Maybe it's the new rainbow sticker in the back window.
Are you getting wheel hop or wheel vibration?
2013 CC 5.3
81 C10 LS1 project
Wheel hop. The rear end of the truck feels like there's someone literally jumping up and down on it. I can look in the mirror or out the rear window and see the bed bounce.Originally Posted by tanz45
T-RAV99 GMC | 5.3 | Skinny White Guy Tuned
Detune it & slow down.
Gone, but not forgotten!
Any noise?
You have a carrier bearing? I have had bad front u-joints vibe really bad.
2013 CC 5.3
81 C10 LS1 project
Maybe bad, out of round especially at 70mph--- tires? Higher speed would make the problem worse.
Jack the axles up and rotate the tires. Find the high spot and low and measure. Put something for it to rub against for the high spot.
I can not remember what the specs are but I would guess 3/16".
When you rotated the tires did you switch rear to front? You would have to have more than one bad tire then.
Just a guess.
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