The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Need ideas. 15yr old vibration that just won't go away

**mattfranklin** · 02-09-2021, 07:38 PM

How hard are you accelerating when this happens? Could it be wheel hop? How old are the shock absorbers? And are they configured for anti-wheel hop? I.e., one shock angled toward the front and one angled toward the rear?

Or could it be a limited slip rear differential slipping and grapping intermittently? New fluid with proper additive for the posi if it has one?

02-09-2021, 07:38 PM	#13
mattfranklin Senior Member Join Date: Dec 2011 Location: Moraga, CA Posts: 808	Re: Need ideas. 15yr old vibration that just won't go away How hard are you accelerating when this happens? Could it be wheel hop? How old are the shock absorbers? And are they configured for anti-wheel hop? I.e., one shock angled toward the front and one angled toward the rear? Or could it be a limited slip rear differential slipping and grapping intermittently? New fluid with proper additive for the posi if it has one? __________________ (Very) Slow-Going Build Thread: Stock 1970 Short Step with Stock 1970 LT-1 http://67-72chevytrucks.com/vboard/s...d.php?t=567340 Last edited by mattfranklin; 02-09-2021 at 07:44 PM.