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Gary
Gary, ASE Certified Technician
Category: Chevy
Satisfied Customers: 298
Experience:  ASE Master Truck Technician,24 Years GM Shop Foreman,Fully Trained GM Trucks Light and Heavy.
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Crush sleeve carrier bearings and pinion bearings..shaft..bolt

Resolved Question:

i am replacing crush sleeve carrier bearings and pinion bearings. how do i set depth now, wil the index on the nut and shaft still put me where i need to be. the book said to measure the inch pounds needed to turn rearend,but when i removed pinion bolt axiles where out.please advise.
Submitted: 2 years ago.
Category: Chevy
Expert:  Gary replied 2 years ago.
Hi, the pinion depth is set by the shim, or shims that are mounted between the larger pinion bearing, and the pinion gear. When this bearing is pressed off, the shims must be reused, to keep the same pinion depth. After installing the shims on the bare pinion, you would press the large bearing on, then after changing the races in the rear end housing, making sure they are completely seated, you should oil the bearing, put the pinion in place, install a new crush collar, oil the outer bearing, and put it in place..tap it on a little, put your seal in, put your flange on. install a holder on the flange to keep from turning, tighten the nut untill it contacts the bearing, and starts to crush the collar. At the point of crushing the collar, gradually tighten untill there is a little drag when turning. Measure this drag as you go, untill you measure about 20 inch pounds of rotational torque. If you exceed this amount by any more than a few inch pounds, you need to do it over with a new crush collar, as too loose, or too tight will damage the pinion bearings.This is known as preload, and is a necessary measurement. Indexing the nut is not an accurate way of installing the pinion, when parts are new. Usually if you have a pinion noise, this repair will correct it. Remember to make sure the side bearing shims, and caps all go back in the same position as they were taken out, as they are all different. Good luck...Gary
Gary, ASE Certified Technician
Category: Chevy
Satisfied Customers: 298
Experience: ASE Master Truck Technician,24 Years GM Shop Foreman,Fully Trained GM Trucks Light and Heavy.
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