The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - correcting pinion angle after lowering rear

1969burb · 04-23-2006, 08:16 PM

I'm hoping someone can point me in the right direction. I have lowered the rear of my burb 5 1/2 inches in the back. (4 inch lowered springs and 1 1/2 blocks.) (1/2 ton with trailing arms) I have a vibration at 35-45 mph that wasn't there before and I assume it is a pinion angle problem. I know this can be corrected with shims, but how do I determine how many degrees I need to correct it?

04-23-2006, 08:16 PM	#1
1969burb Registered User Join Date: Aug 2004 Location: olympia wa Posts: 33	correcting pinion angle after lowering rear I'm hoping someone can point me in the right direction. I have lowered the rear of my burb 5 1/2 inches in the back. (4 inch lowered springs and 1 1/2 blocks.) (1/2 ton with trailing arms) I have a vibration at 35-45 mph that wasn't there before and I assume it is a pinion angle problem. I know this can be corrected with shims, but how do I determine how many degrees I need to correct it?