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monzaz · 09-04-2007, 08:53 AM

DO NOT scrap that 10 bolt. It is very strong. It is a 8.5 10 bolt if it is a original 1971 1972 rear. BUILD it. I can make it hold to what ever you want to throw at it.

You can keep the car origianal and still have your strength.

I do all GM diffs .... Buicks also cam with these 8.5 rears in 1971 1972... they still use these diffs in the trucks today. TONS of great parts. If they were so weak why are they still going. Same guts as a GN rear too. We can upgrade the splines up to 33 spline even though 30 will more tan do the job for your requirements. I have guys that take these rears to the 9's

Just PM me for a price quote...

09-04-2007, 08:53 AM	#4 (permalink)
monzaz Senior Member Join Date: Jul 2006 Location: Richfield, Oh Posts: 85	10 bolt strength DO NOT scrap that 10 bolt. It is very strong. It is a 8.5 10 bolt if it is a original 1971 1972 rear. BUILD it. I can make it hold to what ever you want to throw at it. You can keep the car origianal and still have your strength. I do all GM diffs .... Buicks also cam with these 8.5 rears in 1971 1972... they still use these diffs in the trucks today. TONS of great parts. If they were so weak why are they still going. Same guts as a GN rear too. We can upgrade the splines up to 33 spline even though 30 will more tan do the job for your requirements. I have guys that take these rears to the 9's Just PM me for a price quote...