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Old 06-27-2011, 09:31 PM   #1
1LowToy
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Join Date: Nov 2009
Location: Sonora California
Posts: 860
Pinion angle Now adjustable

I went the poorboy route when I did my flip kit. I used and axle perch from the local Tractor Supply store. The perch worked fine but the pinion angle was nothing but a guess. So I came up with this for a solution.

4 3/8 x2" bolts
4 3/8 x1" bolts
4 all thread 3/8" nuts
A short or shortened 3" drill bit.

I drilled the factory axle perches front and rear of the axle tube and installed the 3/8" fasteners as ahown in pic 1&2. Drilling will require an angle drill or a short or shortened drill bit. Simply not enough room for a standard drill. I found Sears has short drill bits for angle drills but Sears is a 100 mile round trip for me. So I shortened a 3/8 drill bit.

Set the rear axle on ramps and lifted the front of the truck to level the transmission. See pics 3&4.

Next I placed the level on the differential cover bolts. Just by luck the magnets on the level fit right on the bolts. See pic 5. Next option was to remove the differential cover for a flat surface. Crack loose the axle U bolts and adjust as needed. I adjusted mine to about a half a bubble of with the pinion angle down. I'm shooting for 2 to 3 degees down on the pinion.

Tighten the U bolts and test drive to check for vibrations. All good? get the new axle perches welded to the axle tube.

The shock extentions are going on tonight. I made those too. Im cheap so what.

Let me know what ya think.
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Last edited by 1LowToy; 06-27-2011 at 11:34 PM.
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