Pinion Bearings - Pirate4x4.Com : 4x4 and Off-Road Forum

tdculp · 12-08-2006, 09:10 PM

Just installed new carrier and pinion bearings on the front diff of a 1999 GC Laredo 4X4, and when setting the pinion bearings peload I seemd to have over torqued the pinion nut a bit, so I backed off 1/2 turn which now gives me approx 45 inch lbs of preload as opposed to the required 15-35.

Is this adjustment that critical, did backing off of the initial torque by 1/2 turn increase any freeplay anywhere? Can I leave it as is, which is with the backed off 1/2 turn, and the 45inch lbs of preload? Or should I give it 1/2 turn to put back to the original torque, but then I am guessing this would increase my preload to 45-50 inch lbs? Or, should I install a new crush washer and start over?

fishotro · 12-08-2006, 11:52 PM

i just finished my first R&P using pirates info, but it was HP44. if it where me, I'd start over and shim it 'bout .005 at least. im not positive, good luck.

BlueAngel · 12-09-2006, 06:08 AM

You cannot just back off the pinion nut with a crush sleeve design, the crush sleeve is already overcrushed, you will need to buy a need one and start over.

84scrambler · 12-09-2006, 08:50 PM

i would start over cause you have now made the sleve to small and you will eat uo pinion bearings if you leave it.

95yj · 12-10-2006, 11:21 AM

Quote:

Originally Posted by BlueAngel

You cannot just back off the pinion nut with a crush sleeve design, the crush sleeve is already overcrushed, you will need to buy a need one and start over.

x2. Many of the install kits even give you 2 crush sleeves now. No way I'd leave it in there.

tdculp · 12-10-2006, 07:39 PM

Thx, Got new crush sleeve and reinstalled.

12-08-2006, 09:10 PM	#1 (permalink)
tdculp Registered User Join Date: Sep 2005 Member # 54259 Posts: 33	Pinion Bearings Just installed new carrier and pinion bearings on the front diff of a 1999 GC Laredo 4X4, and when setting the pinion bearings peload I seemd to have over torqued the pinion nut a bit, so I backed off 1/2 turn which now gives me approx 45 inch lbs of preload as opposed to the required 15-35. Is this adjustment that critical, did backing off of the initial torque by 1/2 turn increase any freeplay anywhere? Can I leave it as is, which is with the backed off 1/2 turn, and the 45inch lbs of preload? Or should I give it 1/2 turn to put back to the original torque, but then I am guessing this would increase my preload to 45-50 inch lbs? Or, should I install a new crush washer and start over? __________________ 95 SWB 97 lx450 93 940t 86 930

12-08-2006, 11:52 PM	#2 (permalink)
fishotro Registered User Join Date: Jan 2006 Member # 65332 Location: Red Bluff, CA Posts: 411	i just finished my first R&P using pirates info, but it was HP44. if it where me, I'd start over and shim it 'bout .005 at least. im not positive, good luck. Last edited by fishotro; 12-08-2006 at 11:53 PM.

12-09-2006, 06:08 AM	#3 (permalink)
BlueAngel Bending light Join Date: Nov 2003 Member # 24300 Location: Ontario, CANADA Posts: 1,212	You cannot just back off the pinion nut with a crush sleeve design, the crush sleeve is already overcrushed, you will need to buy a need one and start over. __________________ Project - Destroyer

12-09-2006, 08:50 PM	#4 (permalink)
84scrambler Registered User Join Date: Feb 2000 Member # 291 Location: Livermore, Ca Posts: 2,192	i would start over cause you have now made the sleve to small and you will eat uo pinion bearings if you leave it. __________________ In The Rear With The Gear...

12-10-2006, 07:39 PM	#6 (permalink)
tdculp Registered User Join Date: Sep 2005 Member # 54259 Posts: 33	Thx, Got new crush sleeve and reinstalled. __________________ 95 SWB 97 lx450 93 940t 86 930

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