A-Body 10-Bolt Rear

78cutlass · October 18th, 2009, 08:46 PM

What's the going rate for a 10-bolt A-body rear? It's a clean core, 3.31 gears, open differential (non-posi). It came out of a '71 Buick Skylark GS350 car.

507OLDS · October 19th, 2009, 01:20 AM

Recheck the ratio.They did not make a 3:31 ratio for the 8.5" 10-bolt.They made 3:23's & 3:42's,but nothing in between those.
It might be an 8.2" 10-bolt.Those could have 3:36 ratio,but the last year they put that rear in the Skylark/GS was 1970. There is always the chance that the rear was swapped in the past. If you can,post some pictures of it,& I'll identify it.

monzaz · October 22nd, 2009, 07:10 AM

Well alot depends on housing conditions , gear ratio and internal condition...BUT being a 10 bolt 50-150 all mostly depends on if you can find the right person at the right time.

local sale would obviously be a plus since shipping will be almost as much as the rear. If you have pictures of the rear cover area we can ID the rear and maybe help you have all the info to sell the item easier.

Jim

October 18th, 2009, 08:46 PM	#1 (permalink)
78cutlass 78cutlass Join Date: Jan 2008 Location: Florida Posts: 100	A-Body 10-Bolt Rear What's the going rate for a 10-bolt A-body rear? It's a clean core, 3.31 gears, open differential (non-posi). It came out of a '71 Buick Skylark GS350 car.

October 19th, 2009, 01:20 AM	#2 (permalink)
507OLDS Registered User Join Date: Oct 2009 Location: Erie,PA Posts: 20	Recheck the ratio.They did not make a 3:31 ratio for the 8.5" 10-bolt.They made 3:23's & 3:42's,but nothing in between those. It might be an 8.2" 10-bolt.Those could have 3:36 ratio,but the last year they put that rear in the Skylark/GS was 1970. There is always the chance that the rear was swapped in the past. If you can,post some pictures of it,& I'll identify it. __________________ Brian Trick thetrickfamily@yahoo.com 814-440-3553 70 W30's 70 W31 72 Cutlass Supreme 507"

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