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Old 03-14-2012, 04:15 AM
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Z28 rear ends 9 bolt or 10 witch is better

Good morning to all I aim in need of some help I would like to know if a 9 bolt Borg Warner rear end is better then a 10 bolt rear end bouth rear ends are possi and from a z28 all disc brake I am going to install it in my 57 apache I was told the Borg Warner rear end is better end heavier duty 9 or 10 bolt witch is better thanks again cesar

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Old 03-14-2012, 03:56 PM
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The Aussy B/W 9-Bolt is better than the 7.5"/7.6" 10-Bolt.
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Old 03-14-2012, 04:20 PM
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it's a wash, the 9 bolt is a tad better, not enough to write home about..
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Old 03-14-2012, 05:04 PM
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Quote:
Originally Posted by Cesarj
Good morning to all I aim in need of some help I would like to know if a 9 bolt Borg Warner rear end is better then a 10 bolt rear end bouth rear ends are possi and from a z28 all disc brake I am going to install it in my 57 apache I was told the Borg Warner rear end is better end heavier duty 9 or 10 bolt witch is better thanks again cesar
I wouldnt put a piece of crap rear in a nice truck like your apache.
Find something from a newer truck, seriously, thats is too nice a truck to put in a rear like that. It probably wont last once you start having fun with it anyhow.If it is worth doing....do it right.
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Old 03-14-2012, 07:38 PM
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What rear end would fit my 57 apache that is a good rear end is possi and has disc brakes thanks for your help
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Old 03-14-2012, 07:50 PM
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Gen three rearend

Seeing as I have had 9 gen three Camaro's I am familiar with both rears. I have had much better luck with the nine bolt rears as far as strength. The ten bolt can be made just as strong with axle tube welding, and girdles. I should warn you though that the 9 bolt only has a few available gear ratios and they sell for a pretty penny. I could almost buy a new posi unit for the price of a 9 bolt gear set. I will say that I ran a 406/th400/9 bolt combo on slicks and did not break it, BUT it was starting to get really sloppy after I hooked up a couple of wheels up launches. I agree with latech. If you can find a later model rear that was comparable in width; I would do that.
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Old 03-14-2012, 07:51 PM
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What about using the original diff? They're actually a pretty good unit.
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Old 03-14-2012, 08:02 PM
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Quote:
Originally Posted by prostreet6t9
What about using the original diff? They're actually a pretty good unit.
That is what I was thinking also.
Why not try a ford 8.8 inch swap. Independant suspension, lots had disc,and they are strong. The one from the supercoupes 89-up were a little heavier. they had larger side gears and axle diameter and cv joints.
Just a thought.and they had disc brakes like you were after.
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Old 03-14-2012, 08:17 PM
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Some of the older town cars had a solid axle rear and had disc brakes.
I dont see the need for disc brakes on the back as the rear only does 40% of the braking - tops.Unless your going to haul some weight It wouldnt be worth the money.
I really would be looking for another chevy gear for it, JMO
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Old 03-14-2012, 08:21 PM
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rear end

I once had a Lincoln Versi rear end that had disks and was a good sturdy unit. I can't remember if it was limited slip or what, but it now resides in my dads 40 Chevy chassis.
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Old 03-15-2012, 04:30 AM
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Planning on putting on some nice rims and tires you will be able to see the disc brakes all the way around but I am trying not to brake the bank , I am in the presses of fully restoring to orriganal a 1949 gmc frame of restoration but I ism trying to tinker with my 57 as a daily driver big mistake on my part working on 2 trucks at same figered I could pick up rear end cheap at bone yard trying to get biggest bang for the cheapest buck thanks for all your advice cesar
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Old 03-15-2012, 07:15 AM
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You might check for an Explorer 8.8 a lot of them had 3.55, 3.73, or 4.10 gears with posi. The newer ones had disk brakes also. I think there like 6" wider than an S10 rear so it might be about right for your pickup.
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Old 03-15-2012, 07:25 AM
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Thanks for that bit of info on the ford explorer rear end I will look into it thanks
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Old 03-15-2012, 06:27 PM
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I do quite a few "Tri 5" Car and Truck diff's. Actually a pretty good unit. If it has the wrong ratio for you.. You can get a higher ratio for better cruising.
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Old 03-15-2012, 06:58 PM
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I have to ask what is a tri 5 not familiar with the term I am considering buying te Borg Warner rear end if the gear ratio is wrong any idea where I can pick up knew ones thanks cesar
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