The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

burnin oil · 03-18-2016, 07:34 AM

No the part I was thinking of is not a spring over or shakle setup. It was a new frame bracket that lowers the entire spring down and gains 4" of lift with the stock spring. Any time the suspension changes there will be a driveline angle change and that can not be avoided without dropping the entire engine to transfercase lower in the frame. Dropping the rear of the tcase to fix angle issues will have the opposite affect on the front driveshaft angle. Rear shims only correct the axle angle. Google Spicer drive line manual and it has a wealth of info on setting driveshaft angles up. FYI 0 driveline angle is really bad also like your first picture shows. There should be around 1.5* in a perfect world.

03-18-2016, 07:34 AM	#5
burnin oil Registered User Join Date: Jan 2013 Location: Eastern TN Posts: 1,919	Re: 1967 k20 lift kit question No the part I was thinking of is not a spring over or shakle setup. It was a new frame bracket that lowers the entire spring down and gains 4" of lift with the stock spring. Any time the suspension changes there will be a driveline angle change and that can not be avoided without dropping the entire engine to transfercase lower in the frame. Dropping the rear of the tcase to fix angle issues will have the opposite affect on the front driveshaft angle. Rear shims only correct the axle angle. Google Spicer drive line manual and it has a wealth of info on setting driveshaft angles up. FYI 0 driveline angle is really bad also like your first picture shows. There should be around 1.5* in a perfect world.