Friends Stock Rear Took A Dump
03-30-2006, 11:49 PM
#1
TECH Junkie
Thread Starter
Join Date: Dec 2004
Location: Rockville, MD
Posts: 3,780
Friends Stock Rear Took A Dump
Aparently the 8.8" is no better than the GM 10 bolt. After 2 weekends of racing and some badass launches..netting a best of 1.80 60' and a 14.02... the rear just gave up. all the spider gears were screwed, the retention pin in the center...bent, axles...twisted. its in the process of having an eaton posi and moser 31 spline axles and rear end girdle put in. hopefully theyll take the abuse. hell this is even on the stock clutch, i honestly thought that the clutch would go first.. 
03-31-2006, 12:49 AM
#2
9 Sec. Club!!!
Join Date: Jul 2004
Location: HEB TX
Posts: 1,488
Originally Posted by Wnts2Go10O
Aparently the 8.8" is no better than the GM 10 bolt. After 2 weekends of racing and some badass launches..netting a best of 1.80 60' and a 14.02... the rear just gave up. all the spider gears were screwed, the retention pin in the center...bent, axles...twisted. its in the process of having an eaton posi and moser 31 spline axles and rear end girdle put in. hopefully theyll take the abuse. hell this is even on the stock clutch, i honestly thought that the clutch would go first..
03-31-2006, 05:27 AM
#3
Teching In
Join Date: Sep 2005
Location: Pittsburgh PA
Posts: 48
I raced all last year on a stock rear ( other than 4.10's and a girdle) on ET Streets and had no problems. No banzai rev limiter clutch drop launches mind you, but a little slip at 4500 netted 1.7's and a intact rear
04-02-2006, 04:53 AM
#5
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Join Date: Jan 2002
Location: Pensacola Florida
Posts: 577
The 8.8 is LIGHT YEARS better than a 7.5 10 bolt. You can actually build an 8.8, good luck with a 7.5 and stick car. I have never seen a 7.5 run 5's in the 1/8 on the back bumper either.
The stock axles are horrible and seem to be worse on the Mach 1's? The stock trac lok will go but can be rebuilt with extra clutches and hold quite a bit. My buddy's 03 Cobra has a repacked trac lok and has done ALOT of 1.5 60 ft's without an issue.
The stock axles are horrible and seem to be worse on the Mach 1's? The stock trac lok will go but can be rebuilt with extra clutches and hold quite a bit. My buddy's 03 Cobra has a repacked trac lok and has done ALOT of 1.5 60 ft's without an issue.
04-02-2006, 07:17 PM
#7
Mustang Moderator
Join Date: Jul 2002
Location: Houston, TX
Posts: 70
Originally Posted by Brains
I'm gonna test my luck with a 31 spline truck trac loc, we'll see how that holds up. If/when that breaks, I'll pop in the Eaton -- been very impressed with them (have one in my GM 12 bolt)
That Ford 31sp truck trac-lok will go 9's on a non-tbrake car all day (IMO/IME). You might need to repack it now and but it's a hell of a lot better than an Auburn which breaks more often and isn't self-rebuildable. Considering they can be had for ~$80-100, the the Ford 31sp truck unit is the way to go for any street car that sees trips to the track.
04-03-2006, 04:43 AM
#10
9 Sec. Club!!!
Join Date: Jul 2004
Location: HEB TX
Posts: 1,488
Originally Posted by Speeds8erM-1
The 8.8 is LIGHT YEARS better than a 7.5 10 bolt. You can actually build an 8.8, good luck with a 7.5 and stick car. I have never seen a 7.5 run 5's in the 1/8 on the back bumper either.
The stock axles are horrible and seem to be worse on the Mach 1's? The stock trac lok will go but can be rebuilt with extra clutches and hold quite a bit. My buddy's 03 Cobra has a repacked trac lok and has done ALOT of 1.5 60 ft's without an issue.
The stock axles are horrible and seem to be worse on the Mach 1's? The stock trac lok will go but can be rebuilt with extra clutches and hold quite a bit. My buddy's 03 Cobra has a repacked trac lok and has done ALOT of 1.5 60 ft's without an issue.