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#1 |
Registered User
Join Date: Aug 2012
Location: Delray Beach, Florida
Posts: 4
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rear end questions
I have a 1970 c10 pickup with a 12 bolt 5 lug rear end. I recently purchased a 12 bolt 6 lug rear end with posi and gears. the rear en I purchased is set up for leaf spring mine is coil so my question is: will the posi and gears work in the rear end I have with the 5 lug axles? I guess the question would be will the splines line up? or will I need new axles? Thank you!
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#2 | |
just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: rear end questions
There are length issues with difference in years, possibly spline count too. Plus there is the possibility that the six lugger could be from a 4 wheel drive?
Are the leaf spring pads under the axle? or above? Pictures? As far as swapping parts around, yes. The carrier and gears would fit in the other housing, but it is not a simple bolt-in thing. Gear set-up is a very touchy thing, it needs to be perfect, which is harder to do with used gears. Ultimately, if you did this to gain a posi unit and gear ratio change.....I wouldn't go through the hassle. Who knows how much wear is on the clutches of the posi unit.....assuming that it really is one. Rather than dealing with mixing and trying to match parts, buy a new posi unit, pay a pro to install it in your original housing, and be done with it.... Sell the other stuff.
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#3 |
Registered User
Join Date: Aug 2012
Location: Delray Beach, Florida
Posts: 4
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Re: rear end questions
The leaf spring pads are on top. So your saying that its not worth the hassle to put the posi unit in the rear end I have?
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#4 |
Registered User
Join Date: Jul 2013
Location: Campton Kentucky
Posts: 11
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Re: rear end questions
the carrier and gears you bought will fit in the housing you already have.... and since you already have the carrier, id put the S.O.B int there!! .... just when u do it...either use your ring and pinion, or his ring and pinion... you do NOT want to use his rear gear and your pinion, or vice versa
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#5 |
Registered User
Join Date: Jul 2013
Location: Campton Kentucky
Posts: 11
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Re: rear end questions
i would use his rear gear and pinion if it checks out okay... because they might be a different series carrier...if that was the case... your gears wouldnt fit on his carrier
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#6 |
Registered User
Join Date: Aug 2012
Location: Delray Beach, Florida
Posts: 4
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Re: rear end questions
Cool thanks for the replies! Hopefully everything works out ok
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#7 |
Registered User
Join Date: Apr 2011
Location: Klein Texas
Posts: 3,852
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Re: rear end questions
If you do change the gear set, make sure to take the shim from under the pinion and swap it.
The pinion shim stays with the housing.
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My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe |
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#8 |
Registered User
Join Date: Aug 2012
Location: Delray Beach, Florida
Posts: 4
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Re: rear end questions
Thanks everyone for the replies
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#9 |
Registered User
Join Date: Apr 2013
Location: Knoxville TN
Posts: 1,170
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Re: rear end questions
Important meet factory specs when building rear end.
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#10 | |
Senior Member
![]() Join Date: Mar 2000
Location: Rockville,In. USA
Posts: 3,720
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Re: rear end questions
Quote:
Paul @ GMCPauls |
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