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#1 |
Registered User
Join Date: Aug 2010
Location: kingman,az
Posts: 23
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posi rear info request
a friend just got a complete leaf spring rear axle [i have a coil spring rear] with a posi [ratio unknown].
i would like to have a posi in my '67 C-10 panel. i have a 3.73. how many different series posi units are there? what are the ratio ranges of each. point is if this were to be a 3.08 [or whatever is the close #] would the 3.73 work. same for a 4.10. thanks rod in AZ Last edited by VA72C10; 03-07-2011 at 10:39 AM. Reason: You must be a subscriber to post wiw, wtb, ads... |
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#2 |
VA72C10
![]() Join Date: Mar 2008
Location: Midlothian, VA
Posts: 25,269
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Re: posi rear info request
I cannot remember at the moment for sure, but I think the carrier stopped at 373 and the next picked up at 410....
....moved to the correct forum so hopefully someone knowing more about pumpkins can help ![]()
__________________
Looking for a 67-72 swb or blazer project in or around VA. ![]() |
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#3 |
Registered User
Join Date: Jul 2007
Location: Ontario Canada
Posts: 1,006
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Re: posi rear info request
if it is a 10 bolt , they are 2.73 and up to like 5 something but 12 bolt is like 3.08-3.42 ....3.73 and up
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#4 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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Re: posi rear info request
12 bolt truck goes , 2.76-3.42 on a 3 series carrier....3.73 & lower(higher numerical numbers), are on a 4 series carrier. You can get an aftermarket (thick ring gear), to run a 3.73/4.10/4.56 gear on a 3 series carrier.... crazyL
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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