Compression Ignition Addict
Join Date: Apr 2010
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Make sure that the rear pinion angle is correct before you spend the money on the 1 piece shaft. With only the 5" blocks. Thats only 1.5" lift over stock. If the pinion angle is right, the bars "should" hold the pinion perfectly in place. I have a 4" block in the back of mine. I believe I had to drop the carrier bearing about an inch. I don't have any kind of vibrations even running a 310 tune.
I would drop the carrier bearing 0.75-1" to start with. Then set the pinion angle about 2-4 degrees less then the angle of the driveshaft. Which means. If your driveshaft is on a 20 degree angle, Set the pinion at 16-18 degrees.
2008 F-250 6.4 Auto, CC,SB,FX4, 2" lift, 285/65/20, Spartan tuning, Elite studs, Elite egr delete/wastegate, Elite push rods, Spearco Intercooler, cold side pipe,CFM, 4"down pipe,Custom 5" DP back exhuast 543HP/1231 ft-lbs
Everything from Sean at Street diesel performance
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