GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

I need a new rear end!

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Old Jul 11, 2007 | 11:01 PM
  #11  
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Originally Posted by onebadrubi
Dyno's dont come close to the stress as a 1000rwhp launch. I highly doubt a 10 bolt with a upgraded posi/gears and cover will hold a 800+rwhp hooking launch more then a handful of times.

Two have tryed it that come to mind and both trucks are running ford 9".
Watched a 750 rwhp, 3900 lb TA make 50 passes at a time on a stock 7.5 rear. The 8.5 is much stronger than people realize. Especially with an auto and turbo the stress on it is'nt that bad.
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Old Jul 12, 2007 | 08:47 AM
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Originally Posted by quicksilverado
Watched a 750 rwhp, 3900 lb TA make 50 passes at a time on a stock 7.5 rear. The 8.5 is much stronger than people realize. Especially with an auto and turbo the stress on it is'nt that bad.
What posi unit would you suggest?
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Old Jul 12, 2007 | 09:29 AM
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swap in a 14B rear... or go D60 or 9"..... 10 bolts can be made strong, but you cant beat any one of those rears even in bone stock form for a swap....
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Old Jul 12, 2007 | 10:44 AM
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Originally Posted by silver-mod-o
swap in a 14B rear... or go D60 or 9"..... 10 bolts can be made strong, but you cant beat any one of those rears even in bone stock form for a swap....
Can you get a 14b in 6 lug?
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Old Jul 12, 2007 | 10:53 AM
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yeah out of a silveradoss
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Old Jul 12, 2007 | 11:56 AM
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From: SETx
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or a earlier 4WD truck (OBS)
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Old Jul 12, 2007 | 12:13 PM
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Originally Posted by silver-mod-o
or a earlier 4WD truck (OBS)
What does OBS stand for?
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Old Jul 12, 2007 | 12:17 PM
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OBS = old body style (88-98 model trucks)
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Old Jul 12, 2007 | 01:23 PM
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Originally Posted by Nick™
OBS = old body style (88-98 model trucks)
Will a rear end from one of those trucks be a direct bolt it?
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Old Jul 12, 2007 | 01:44 PM
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you have to move the spring perches and do a couple other small things but other than those minor mods, yes, you bolt it up.... I believe this swap takes the bastardized U-joint as well.... I'd keep the drum brakes too, unless you just wanted disks...
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