Should I worry - The 1947 - Present Chevrolet & GMC Truck Message Board Network

71meangreenc10 · 11-23-2006, 11:47 PM

I rebuilt the rear end, have all the tools to do it, when I put the pinion nut on it was a PITA to get it to tighten, by hand the pinion was sloppy and had play in the bearings, so I had to use the gun, I tightened it slow and got the slop out and it spins free and smooth, with the carrier in I have .006 backlash and the gear pattern looks ok. I know the crush sleave is suspose to be sensitive, but should i worry about not setting the inch lbs on the pinion nut? All parts in the carrier are new.

Thanks

Smitty

**w314speed** · 11-25-2006, 06:09 AM

You must crush, the crush sleeve enough to preload the bearings. If they are at "O" torque they will be loose after about 500 miles of break-in and the .006 backlash will go away.

Remove the pinion nut and wipe some grease on the washer face and the nut and threads. Hammer with the air gun until you get the inch pounds of torque. If it gets to tight, take the smallest ball peen hammer and insert the ball end into the depressed area on the end of the pinion and strike with a BFH, a brass dead blow hammer works best. Repeat until the crush sleeve relaxes. Good Luck!!!

11-23-2006, 11:47 PM	#1
71meangreenc10 Its a Truck Thing...... Join Date: Dec 2004 Location: Sierra Vista, Arizona Posts: 3,159	Should I worry I rebuilt the rear end, have all the tools to do it, when I put the pinion nut on it was a PITA to get it to tighten, by hand the pinion was sloppy and had play in the bearings, so I had to use the gun, I tightened it slow and got the slop out and it spins free and smooth, with the carrier in I have .006 backlash and the gear pattern looks ok. I know the crush sleave is suspose to be sensitive, but should i worry about not setting the inch lbs on the pinion nut? All parts in the carrier are new. Thanks Smitty __________________ 71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time

11-25-2006, 06:09 AM	#2
w314speed Senior Member Join Date: Jun 2005 Location: atlanta Posts: 2,312	Re: Should I worry You must crush, the crush sleeve enough to preload the bearings. If they are at "O" torque they will be loose after about 500 miles of break-in and the .006 backlash will go away. Remove the pinion nut and wipe some grease on the washer face and the nut and threads. Hammer with the air gun until you get the inch pounds of torque. If it gets to tight, take the smallest ball peen hammer and insert the ball end into the depressed area on the end of the pinion and strike with a BFH, a brass dead blow hammer works best. Repeat until the crush sleeve relaxes. Good Luck!!!



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