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rod · 12-05-2010, 12:12 AM

why is it that nhra ruled that a car [any car] can update to a different year rear axle, but it has to be by that mfgr.?
i have nothing against a 12 bolt, but i do not see a drop out center '56 chevy rear being any where near a 12 bolt chevy. whereas a 9" is almost exactly the same axle.
what if you had a '50 olds, your choice would be to a clunky, heavy, out dated and weak '57 axle or a B.O.P. rear from the 60's. no choice.

thoughts

thanks rod in AZ

12-05-2010, 12:12 AM	#1
rod Member Join Date: Dec 2009 Location: Kingman, NW AZ. in the middle of the longest stretch of Route 66 Posts: 315 Likes: 0 Liked 20 Times in 15 Posts	stock elimator rear axle? why is it that nhra ruled that a car [any car] can update to a different year rear axle, but it has to be by that mfgr.? i have nothing against a 12 bolt, but i do not see a drop out center '56 chevy rear being any where near a 12 bolt chevy. whereas a 9" is almost exactly the same axle. what if you had a '50 olds, your choice would be to a clunky, heavy, out dated and weak '57 axle or a B.O.P. rear from the 60's. no choice. thoughts thanks rod in AZ