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Brian Fink · 09-25-2020, 05:54 PM

If you are making decent horsepower and the suspension is up to the job,the 7.5 won't hold up. I thought a Grand National 8.5 would do the trick ;that piece failed after a few seasons .The answer is to do it right the first time with a 12 bolt and pro gears.

09-25-2020, 05:54 PM	#3
Brian Fink Member Join Date: Jul 2007 Posts: 173 Likes: 39 Liked 28 Times in 9 Posts	Re: question, G body 7.5 rear life If you are making decent horsepower and the suspension is up to the job,the 7.5 won't hold up. I thought a Grand National 8.5 would do the trick ;that piece failed after a few seasons .The answer is to do it right the first time with a 12 bolt and pro gears.