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Old 01-10-2002, 02:57 AM
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Post will a 7.5 hold up?

I have a 1986 monte carlo SS with a .040 350. When everything is said and done it will have around 415 horses and a ton of torque. I am putting in a hard shifting TH350 running back to a 7.5 10 bolt with 3.73s. I am about to add stiffer rear springs, a posi locker, southside machine lift bars, and 295-50-15. I want traction, I am talking pull the front tires off the ground kind of traction. I have been hearing rumors that my rear won't hold up under that much power and traction. Is there anything I can do to make it stronger if this is true?

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Old 01-10-2002, 04:08 AM
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SSM also makes a HD differential cover and axle tube braces for the 7.5.It sounds like you want a race only car,if it were me I wouldn't go for all the expensive stuff I'd put in the gear I want and weld the spyders real good so when it broke the expensive parts wouldn't get wasted
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Old 01-10-2002, 05:20 AM
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You could also replace the left hand carier cap with one machined out of steel. It will hold up better than the iron one. Also replace the bolts on that cap with allen head cap screws. They are as tough as you can get. I remember reading that if you pack the carrier and gears in a box with dry ice for a couple of days and then re pack them without ice so they warm up very slowly this will dramaticly extend their service life. If you like I can hunt up the article.
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Old 01-11-2002, 02:17 AM
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This will not be a race only car. Right now its my daily driver. I am going to buy a new truck in the summer, but I am still going to drive the monte on the street. Right now I don't have to worry about the rear because I don't hardly get any traction, but after I am finished with my engine and rear setup I will be playing with a touchy combo from the way it sounds.
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