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Old 03-23-2003, 08:32 PM
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Post Is a 7.5 10 bolt rear end with 350/350 set up ok?

I got an 81 el camino that had a 6cyl in it which i replaced with a stock 1993 chevy 350 motor (with the exception of edlebrock 750cfm carb and intake) and i have a th350 trans that i'm putting a B&M stage 2 shift kit in.... Can my 7.5 rear end take the abuse of this new power plant???? also i heard adding a "mini pinion/spindle" to my rear end will make it positraction????
Thanks Much

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Old 03-24-2003, 10:59 AM
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Wow, nice ride...

My 79 Bu had a 7.5 in it when I got it. the previous owner ran that rear end with 2.73 gears and posi unit to bracket race the car. He used 8" slicks and once broke an axel. If your not going to use slicks or really wide tires, it should be fine.

But, a rear end upgrade would be nice, Buick Gran National or T Type rear end would work. They are 8.5" gears, 28 spline axels and are much stronger than the 7.5" rears. They bolt right in, no mods necessary.

A minispool is not recommended for street rides.

T Type is what I got now with 3.42's and posi. I am very happy with this upgrade for my ride.

<a href="http://www.hawaiianflavor.com/Malibu/malibu.html" target="_blank">My Ride</a>

[ March 24, 2003: Message edited by: OddsNEnds ]</p>
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Old 03-24-2003, 08:25 PM
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Thats a great looking malibu set up you have!!


My icon/advitar picture is my el camino before i bought it and started working on it. I run 215/65r-15's in the back.. but they are now bald fromshow'n off when i first bought the car. I was going to replace them with some cheap bfgoodrich 275/60's or 285/50's .. which ever fits in the wheel wells. I don't intisipate on doing burn outs and gunning it from a dead stop or racing, just a driver with some power for right now. I have a few friends with extra rear ends i might wheel and deal with to upgrade the axle situation. I'm going to find a true posi rather than coble mine into one. Thanks for youe help.
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Old 03-25-2003, 12:13 AM
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Thanks for the compliments...

I think the rear end should live, if not tortured to much. See if you can find someone that has a Monte Carlo SS rear end. Same size, bolts right in, better gear ratio and most are posi.

Good luck!
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Old 03-27-2003, 04:45 PM
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I have a 86 Olds Cutlass with the same 7.5 rear, 82-87 firebird t/a`s and camaro Z28`s, some had posi rears, All I did was change the guts, orderd a kit and switched them over. if your interested in doing this swap let me know, I have all the codes for posi rear`s in t/a`s and Z28`s that indicate it`s a posi and tell`s the ratio.
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