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**CC69Rat** · 02-06-2018, 08:55 PM

Here's a pic to better visualize what I'm trying to explain. When you lower, and/or raise a truck the angle of the pinion vs. the transmission tail shaft, etc. they really need to cancel each other out. I usually run my trucks at about 1 or 2 deg in the rear. You dont want it at dead nuts 0 deg.

https://www.hotrodhotline.com/md/htm..._harmonics.php

02-06-2018, 08:55 PM	#5
CC69Rat Senior Member Join Date: Jan 2011 Location: Chattanooga TN Posts: 6,205	Re: Heavy vibrations Here's a pic to better visualize what I'm trying to explain. When you lower, and/or raise a truck the angle of the pinion vs. the transmission tail shaft, etc. they really need to cancel each other out. I usually run my trucks at about 1 or 2 deg in the rear. You dont want it at dead nuts 0 deg. https://www.hotrodhotline.com/md/htm..._harmonics.php Attached Images __________________ Chad 1967 C10 SWB - Project Savannah - 6.0/4L80 Currently underway 1968 C10 SWB - TOTY 2018, 50th Anniversary Tribute Project * Sold * Pride and Joy 1986 Silverado Short Fleet - Scarlet Sold 1985 Silverado Short Fleet Sold 2022 Jeep Gladiator Mojave 2001 Jeep Cherokee XJ 4x4 - Lifted, Built 1992 Jeep Cherokee XJ 4x4 - Lifted 2013 Honda Accord EX-L v6 Coupe 6spd (wife's ride)