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Discussion Starter · #1 ·
whats the fastest times ran on our axle setup ( except different gears, and posi)

how well do they hold up to hp
 

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Yoko,
As far as i know the gm 8.5 rear ends only really break with manual transmissions.

I would say that until you get to atleast 800 or more horsepower that you dont need to worry about the rear ends breaking..

The posi unit on the other hand is crappy in stock form, and replacement with an eaton or yukon is a good idea along with all new bearings to freshen, and tighten everything up.
 

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Discussion Starter · #3 ·
thanks for the info!

mine has an eaton and 3.42s right now

so close to getting this damn car running again , in just thinking in my head what the first things to break will be lol
 
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