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+--- Thread: rear axle shims? (/thread-2561.html)
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rear axle shims? - berg bronco - 01-03-2011
are they neccessary? i had a local mechanic tell me that i need them! i have a 3.5 inch lift with 11 pack leaf springs with no blocks. if they are needed what degree shim would be the best?
rear axle shims? - blazinchuck - 01-03-2011
well, most nice leafs will have that built in. it is necessary-because you have to keep the pinion at the right angle to the transfer case. usually about 1-2 degrees under inline with the driveshaft. with all this said...you might have to install the leafs first then,check how much of a degree shime you will need. I didnt have to run any with my BCBronco 11 leafs,HTH
rear axle shims? - berg bronco - 01-03-2011
i have wild horses 11pack with the 3.5 lift built in. theve been on the truck for 6 months and i havent had any trouble. how do i check the the angle?
rear axle shims? - Timstrk - 01-03-2011
The driveshaft and the pinion shaft should be in a straigh line. If not the u-joint wil accelerate in part of its rotation and decel on another part. It will wear the joint out doing this. Closer to straight is better. Actually straight is best. Use a tubing bender mag base angle finder. Put it on the top of your drive shaft and then on top of the pinion guard. The two should have the same deflection off "0" or be at the same angle from 90 degrees.
Tim
rear axle shims? - Crawdad - 01-03-2011
I bought a 4" rear lift from JBG (either 5 or 6 pack) and I asked them if I needed shims and they said they do not run shims on their lifts of that size. I still think I need shims.
rear axle shims? - broncosbybart - 01-03-2011
I hadn't needed to run shims on any of the 10 or 11 pack springs that I've installed. Can you post pics of what it looks like?
rear axle shims? - chuzie - 01-04-2011
The beauty of a 4-link is being abe to dial in the pinion angle.
rear axle shims? - berg bronco - 01-04-2011
broncosbybart Wrote:I hadn't needed to run shims on any of the 10 or 11 pack springs that I've installed. Can you post pics of what it looks like?
ya ill get some in the a.m.
rear axle shims? - berg bronco - 01-04-2011
chuzie Wrote:The beauty of a 4-link is being abe to dial in the pinion angle.
bieng you and Chuck are so good at the install you guys can come install the 4link for me!:xyxthumbs: perfect getaway to the mountians.
rear axle shims? - berg bronco - 01-04-2011
![[Image: DSC_3921640x480.jpg]](http://i359.photobucket.com/albums/oo40/bergbronco/DSC_3921640x480.jpg)
![[Image: DSC_3920640x480.jpg]](http://i359.photobucket.com/albums/oo40/bergbronco/DSC_3920640x480.jpg)
heres a few pics