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Old 01-08-2004, 07:07 PM
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Posi?

I am going to put in a 3.73 ring and pinion soon but I don't know if I should go with a posi or not. My Buddy's dad who used to race cars for NHRA is totally against posi units. I haven't had the chance to talk to him yet because of work, but I remember him saying that once before. Right now I have a open carrier for the gears but I don't know if I should go with a posi or not because of what he said. What are your guys opinions on using an open carrier vs a posi unit on a 1970 Chevy Nova with 3.73 and a daily driver. Just kinda curious.
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Old 01-08-2004, 09:13 PM
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I cannot imagine why a former drag racer would be against posi's. I say put one in if you have the bucks, you will never regret it.

Vince
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Old 01-08-2004, 09:29 PM
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I see no reason not to run a posi, maybe the drag racer thought it was a spool that should never be used on the street?!?!
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Old 01-09-2004, 06:05 AM
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Quote:
Originally posted by Crazy Mopar Guy
I see no reason not to run a posi, maybe the drag racer thought it was a spool that should never be used on the street?!?!
I think that's the case. There is a huge difference in a posi unit and a spool. Serious drag racers (who don't drive there car anywhere but on the strip) will use a spool and I'm sure that's what he is against using. Spools are simply not made for street use because they mechanically prohibit the rear wheels from rotating at different rates when going around a corner. A posi differential is designed to allow the wheels to rotate differently but still direct the power to both wheels when needed.

Centerline

Last edited by Centerline; 01-09-2004 at 06:10 AM.
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