Rear-ends break, yes or no?
TECH Enthusiast
Joined: Nov 2004
Posts: 659
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From: Red Stick, LA
Originally Posted by REDWS6CHICK
I heard the axles break on thses cars after a certain horsepower, is this true? Should I buy a new rear end or ajust axles? please help? 
You can upgrade to a 12 bolt, Ford 9 inch, Ford 8.8. Check out Strange, Moser, and Currie for new rears.
You will probably be safe until you are running 11's or launching at 6000RPMs
Originally Posted by BBQLS1
Yep, but you can't really tell when. Depends on A4 or M6, how hard you launch, slicks, super duper pooper scooper clutch, etc.
You can upgrade to a 12 bolt, Ford 9 inch, Ford 8.8. Check out Strange, Moser, and Currie for new rears.
You will probably be safe until you are running 11's or launching at 6000RPMs
You can upgrade to a 12 bolt, Ford 9 inch, Ford 8.8. Check out Strange, Moser, and Currie for new rears.
You will probably be safe until you are running 11's or launching at 6000RPMs
Thanks, 450 hp is borderline before breaking? have M6 by the way
TECH Enthusiast
Joined: Nov 2004
Posts: 659
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From: Red Stick, LA
Originally Posted by REDWS6CHICK
Thanks, 450 hp is borderline before breaking? have M6 by the way
If you have dynoed 450 at the wheels and the car hooks, I would say that you can easily break the 10 bolt. Some live, but not often. M6 is hard on your driveline especially with a good clutch. My car is close to stock and I am looking into it. I may wait till after I put some headers on it though.
Doesn't really take much to decimate a 10-bolt. A couple of clutch dumps with a tire that sticks should do the trick, especially with an M6. 
I learned this the hard way also. The stock aluminum driveshaft is also a weak link. Learned that one too... 
I learned this the hard way also. The stock aluminum driveshaft is also a weak link. Learned that one too... Trending Topics
Originally Posted by BBQLS1
How do you know? By the way how do you like that 3/4 race cam? 
I killed 2 gear sets on nittos at the track with only long toobs, exhaust, clutch, and a Lid. I never launched higher than 2500 rpm.
With the 9" I now launch at 6500+ and dead hook with no Ill effects on the rearend.
The cam is a g5x3 from LG motorsports n I like it
Brad
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On The Tree
Joined: Jan 2004
Posts: 158
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From: El Paso TX
I went thru a set of gears....... I am dumping the clutch at 6000 on ET streets on the 10 bolt with 4.10's. It still going strong, only hear a slight whine....... but yeah it'll go out in a couple more hard launches..... 9 inch here I come.........
TECH Regular
Joined: Aug 2002
Posts: 400
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From: New Hampshire
Originally Posted by REDWS6CHICK
I heard the axles break on thses cars after a certain horsepower, is this true? Should I buy a new rear end or ajust axles? please help?
Yeah .... they breaK .......
Last edited by M3EATER; Apr 2, 2005 at 12:02 PM. Reason: re-size photos
TECH Regular
Joined: Aug 2002
Posts: 400
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From: New Hampshire
The housing broke first (after the carrier bearing on that side blew up) which chewed up the ring & pinion.
That was from road racing. It puts a big side load on the carrier bearings and chews them up.
That was from road racing. It puts a big side load on the carrier bearings and chews them up.
Originally Posted by ULTIMATEORANGESS
usually the gears,posi and everything else goes before your axles.
12 Second Club
Joined: Apr 2003
Posts: 394
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From: Pa
Like someone said before, it can happen whenever.. I have been running drag radials from 3,000 miles on the car with no problems.. I only have raced down the track about 7 times, and about 75 street races. Before my gears were installed last sumer i use to launch on the street at 3,500 with no spin and the rear never took a crap, and that is spraying 1st gear after 3,000rpm's.. good luck,
Originally Posted by Nasty Hawk
Like someone said before, it can happen whenever.. I have been running drag radials from 3,000 miles on the car with no problems.. I only have raced down the track about 7 times, and about 75 street races. Before my gears were installed last sumer i use to launch on the street at 3,500 with no spin and the rear never took a crap, and that is spraying 1st gear after 3,000rpm's.. good luck,
