Posi or spool
For a low class stocker, T/U, is a post unit more efficient to use, less reciprocating weight? Any other advantages?
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Re: Posi or spool
Spool is lighter,if you pay attention to the circumstances of the tires a posi doesn't help.
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Re: Posi or spool
Weight is always important, especially when you don't have much HP to get it moving. Plus there are no moving parts to break or wear out with a spool. Cheaper too!
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Re: Posi or spool
Spool. In addition to lighter, stronger, and cheaper, zero chance of the clutches in a limited slip unit slipping.
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Re: Posi or spool
I've tried both, never really noticed any difference. I currently run a spool in the original 6 cylinder rear end (Dana 35), it is a little quicker than the big V8 rear end I ran originally.
Jim Mantle V/SA 6632 |
Re: Posi or spool
How do the aluminum spools hold up with a low HP engine? I'm thinking of using one with a 273 2bbl engine in a Dart. I'm estimating I need 225 HP to run the index.
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Re: Posi or spool
We ran a MW aluminum spool in a 1200 HP 2000 lb 5speed B/D for several years and never broke one - I feel they will work with lower HP car on 9" tires
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Re: Posi or spool
I've always used posis in my stuff. They have to be more forgiving of any down-track movements.
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