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#1 |
*Proud Member*
Join Date: Nov 2002
Location: Pittsburgh, PA
Posts: 741
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Setting up a GM 10 Bolt Rear end... new gears!
Well guys, one of my winter projects was to change out my rear axle gears. I put an axle from a '69 Chevelle in my truck so that I was able to use camaro rear discs! The axle is a 10 bolt, 8.5". Originally, the axle was setup for the drag strip and accordingly had 4.88 gears!!!!! yep, 4.88!!!! Well, my first summer of driving my fresh restoration was interesting.... I managed to pull some great hole shots at red lights, but cruising at 3500 - 4000 wasn't too much fun.... so, i've got a set of 3.73's from Richmond and so far, i've totally disassembed the rear axle... no big deal... I'm now staring at a posi carrier on the bench, with a new gear on it, and a pinion gear. Now what!?!?
Does anyone have a good how to article on how to setup this axle. I ran into a couple of articles, but nothing really detailed on how to set the pinion depth and backlash, etc... any thoughts! |
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#2 |
Registered User
Join Date: Feb 2003
Location: Midwest City, OK
Posts: 1,001
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Re: Setting up a GM 10 Bolt Rear end... new gears!
4.88's!!!
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__________________
Robert Current: 1986 SWB Silverado 4.3 / TH400 Past: 1985 SWB Silverado 305 / TH350 - sold 1995 1987 1/2 ton Silverado - FI 350 / 700R4 sold 2007 |
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#3 |
Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Re: Setting up a GM 10 Bolt Rear end... new gears!
Finish the job---you got that far the rest is the fun part.
Install the carrier and chck for depth an d alignment on the gear teeth. Use a good lithium grease to show the pattern of gear mesh. The adjustments will require either collars for the input shaft or or moving the carrier to the left or right with shims. |
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#4 |
Gentleman Jim Driver
Join Date: Nov 2002
Location: Poulsbo, WA
Posts: 1,550
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Re: Setting up a GM 10 Bolt Rear end... new gears!
This is the link you need:
http://www.ringpinion.com/downloads/yukoninstman.pdf (dial up warning...) Its from Randy's Ring and Pinion. I've bought from them a few times and I'm a very satisfied customer. I've done a few axle setups (the first one has about 20k on it, I guess I did ok). Follow the installation manual to the letter, don't skimp on the special tools you need. Off hand, you will need a dial indicator, dial caliper, torque wrench and a press and various pullers. I'd recommend making your old bearings into 'set up' bearings to save pulling your pinion bearing multiple times. I also made my old spider cross shaft into a driver for driving the pinion out of the case if you don't use setup bearings. Read this file a couple times and ask if you have questions!
__________________
Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed |
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#5 |
*Proud Member*
Join Date: Nov 2002
Location: Pittsburgh, PA
Posts: 741
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Re: Setting up a GM 10 Bolt Rear end... new gears!
thanks man!
i did find a guy with a dial indicator that i can use, so that's a relief! 'preciate the help! |
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#6 |
Registered User
Join Date: Jul 2010
Location: Janesville, WI
Posts: 664
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Re: Setting up a GM 10 Bolt Rear end... new gears!
Is there an updated page for this I just get an error for it and need this set up info or step by step as my 3.73s that have been on there last leg have been done in by t56 swap
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#7 |
Gentleman Jim Driver
Join Date: Nov 2002
Location: Poulsbo, WA
Posts: 1,550
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Re: Setting up a GM 10 Bolt Rear end... new gears!
__________________
Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed |
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#8 |
Registered User
Join Date: Jul 2010
Location: Janesville, WI
Posts: 664
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Re: Setting up a GM 10 Bolt Rear end... new gears!
Perfect! Thanks a ton
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