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BossHogg69 · 03-17-2016, 01:25 PM

My truck is lowered 7.5" in the back (6" spring, 1.5" block) and I used a 6* shim to get mine right. It is 4.5* coming off the trans yoke.

FWIW, I'm also using a PB Fab trans x-member, and the trailing arms are in the 2nd hole from the top. There are 4 adjustment holes on it.

I also had traction problems with my truck, but since I windowed the #1 cylinder, it doesn't spin the tires much at all

03-17-2016, 01:25 PM	#5
BossHogg69 motor exploder Join Date: Mar 2009 Location: Pittsburgh, PA Posts: 2,346	Re: pinion angles for traction My truck is lowered 7.5" in the back (6" spring, 1.5" block) and I used a 6* shim to get mine right. It is 4.5* coming off the trans yoke. FWIW, I'm also using a PB Fab trans x-member, and the trailing arms are in the 2nd hole from the top. There are 4 adjustment holes on it. I also had traction problems with my truck, but since I windowed the #1 cylinder, it doesn't spin the tires much at all __________________ Adam 1969 Chevy CST/10 stepside, DART Big M/TREMEC Magnum Extreme/3.73's w/Detroit Truetrac 1965 Chevy Bel Air Wagon (daily driver), 327/TH350,10 bolt w/3.08's 1961 Chevy Bel Air Sport Coupe, ZZ454/M21/9" rear w/3.50's & Detroit Truetrac 2005 GMC 1500 ccsb 2wd, 6.0L/4L65e/3.73 G80 2006 GMC 2500HD ccsb 4x4, DMax LBZ/Allison 6spd/4.56's w/Detroit TrueTrac Use the SEARCH function on this forum - it is your friend!!