pinion bearings

Started by blasterguy911, October 31, 2011, 08:49:56 PM

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blasterguy911

on the pinion bearing i read from a couple places online that it is supposed to have a preload of 20 inch pounds is that correct feels like to  much?
1972 bronco

old school truck dude

Dont sound like enough to me, more like 20 ft lbs, but I dont know, I just go by feel  ;D

Boggen Joe

Is it a new bearing and crush sleeve?
98 blazer 388/350/208, 60 front,14ff rear, 4:88s, on 44s cut

camok10

15 to 20 inch lbs by rotating the pinion with new bearings and new crush sleeve
07 Silverado 2.5" leveling kit, flowmaster, k&n, manual every thing but the trans

84 c10 project

82 c10 beater diesel

old school truck dude

DON'T OVERTIGHTEN IT.

Drive Pinion Bearings Replacement (8.6, 9.5, 11.5 Inch Axles)

Tighten the pinion nut until the pinion end play is just taken up. Rotate the pinion while tightening the nut to seat the bearings.

Measure the rotating torque of the pinion using an inch-pound torque wrench.
Specification
The rotating torque of the pinion should be between 1.0-2.3 N·m (10-20 lb in) for used bearings, or 1.7-3.4 N·m (15-30 lb in) for new bearings .

If the rotating torque measurement is below 1.0 N·m (10 lb in) for used bearings, or 1.7 N·m (15 lb in) for new bearings, continue to tighten the pinion nut.
Tighten
Tighten the pinion nut, in small increments, as needed, until the torque required in order to rotate the pinion is between 1.0-2.3 N·m (10-20 lb in) for used bearings, or 1.7-3.4 N·m (15-30 lb in) for new bearings.

Once the specified torque is obtained, rotate the pinion several times to ensure the bearings have seated.
Inspect the rotating torque and adjust if necessary.  


Courtesy of allexpert.com

blasterguy911

Quote from: Boggen Joe on November 06, 2011, 03:27:08 PM
Is it a new bearing and crush sleeve?
yes that is with all new bearings and crush sleve. we set it at 20 inch pounds then read it was 20 inch pounds with carrier in there too so got a new crush sleve set it to 20 again and it got hot is this normal you can put your hand on it but its pretty warn.
1972 bronco

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