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Old 02-06-2003, 07:09 PM
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Post GM 10 bolt 8.5

Whats a good posi unit or limited slip unit for a GM 10 bolt 8.5" this will be for street use mainly with 4:10 gears or 3:90 not sure yet. i've seen the powertrax unit but isnt that a full posi? i have a stock limited slip unit that came out of a 96 Z71 in the shop right now but i dont know if that unit is as good as a aftermarket unit, what would be my best bet?

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Old 02-06-2003, 07:18 PM
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Had a Brute Strength differential in my 12 bolt that was bullitproof. Don't know if they make it for a 10 bolt, not really a chevy guy. I do know that I've worked with these guys on their 800 number and they are very helpful if you tell them what you want to do. They are <a href="" target="_blank"></a> . All they do is rears.
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Old 02-06-2003, 07:29 PM
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I had a Powertrax unit in my Nova and loved it. The Powertrax works off of four springs and centrifugal force. Once the gears start turning, the springs engage the plates. When you turn the change in wheel speed causes the inner plate to disengage. The only thing that took some getting used to was the noise it made. Bear in mind that I used the stouter "race" springs, so the "street" springs might be a little quieter. All in all, I was well pleased with the investment.
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