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#1 |
Registered User
Join Date: Apr 2009
Location: Sand Springs Ok
Posts: 6
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looking for posi
I'm looking for a posi unit for my 72 c10. Can a unit from a latter model truck,73 on, work or does it need to be from a 67-72?
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#2 |
Registered User
Join Date: Jun 2008
Location: South Florida
Posts: 11,375
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Re: looking for posi
I just put an Auburn unit a few months ago...
Auburn part# 542032
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Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild |
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#3 |
Registered User
Join Date: Nov 2008
Location: Italy
Posts: 1,278
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Re: looking for posi
Was this tough to install?
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'68 C-10 SWB 383 Stroker (Sold 3/2/2013) '87 R2500 LWB 454 TBI converted to Carb ![]() |
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#4 |
Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,720
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Re: looking for posi
12 bolt truck will work from later years. BUT....most of the 73 and up are Gov-Lok (aka Gov-Bomb) and not Eaton style like the 67-72. What do you plan on doing with the truck? I would just buy a new Eaton posi or somebody elses (Yukon?) clutch style rebuildable posi. If you get a 67-72 OEM posi, most likely it will need clutches which run about $100 for the complete set so you have to add that to the cost. But if you can get a complete rear for the right price with the posi, go for it!
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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#5 |
Registered User
Join Date: Jun 2008
Location: South Florida
Posts: 11,375
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Re: looking for posi
We spent around an hour and a half. Then one of my techs had to shim it for me as he has done hundreds of posi units.
__________________
Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild |
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#6 |
Registered User
![]() Join Date: Aug 2001
Location: SOMERSET KY.
Posts: 6,427
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Re: looking for posi
I have a 12 bolt 373 posi in a 72 1/2 ton. P.m. Me if you are interested in driving to ky. John
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junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. ![]() LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST |
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#7 |
Registered User
Join Date: Apr 2010
Location: Mobile, AL
Posts: 365
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Re: looking for posi
I bought a brand new eaton posi from rearendparts.com. They had it listed at like $4__, I talked them down to $385. Got quoted to install it and 3.73 gears (i have all bearings and seals) for $250.
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#8 |
My Carbon Footprint
Join Date: Oct 2008
Location: Orygun
Posts: 5,527
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Re: looking for posi
I'm not answering your specific question because I don't know rear ends that well but craigslist is a great place to look if you are not going new. Picked mine up for $125 and it works perfect.
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#9 |
Registered User
Join Date: Sep 2005
Location: Canton North carolina
Posts: 3,079
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Re: looking for posi
I have had both stock Gm, and a Auburn. The Auburn is a tough quality piece and worth the money. The Stock posi in my 4x4 had broken clutches when I pulled it apart to rebuild and the stock posi in my bb truck was not in much better shape, but after rebuilding them both they seem to be ok. I dont believe the stock clutches are available from Gm anymore so you would have to buy from Randy's Ring and pinion or Richmond.
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#10 |
The Engine Whisperer
Join Date: Sep 2006
Location: Ohio
Posts: 770
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Re: looking for posi
Get an eaton if your going to even start to make any power or just want a reliable posi unit. I've seen alot of auburns go boom!
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