Corvette rear-ends

the gillz · 10-11-2006, 01:47 PM

I read in a MMFF article that the LS1 corvettes come stock with a 7.5 rear. This seems small for the power they put out. Is this true, if so is it possible that the 7.5 is a V6 stang can handle some serious power? If not then what are the main differences.

mustangvsix · 10-11-2006, 05:28 PM

Quote:

Originally Posted by the gillz

I read in a MMFF article that the LS1 corvettes come stock with a 7.5 rear. This seems small for the power they put out. Is this true, if so is it possible that the 7.5 is a V6 stang can handle some serious power? If not then what are the main differences.

i don't know about the vette, but i beleive the 7.5 on our V6's is good to a max of 250hp~.I have heard #'s up to 300 but i mean the GT came with 250hp(flywheel) stock and they upgraded the rear, so i would imagine you wouldn't want to stress it too much more then 250hp.

dhuskers_11 · 10-11-2006, 06:17 PM

i thought they were good to 350?

mustangvsix · 10-11-2006, 06:20 PM

Quote:

Originally Posted by dhuskers_11

i thought they were good to 350?

i'm not 100% sure, but their has got to be a reason that ford didn't want to put the 7.5 in the GT's. i really wouldn't build a V6 and try and run 350hp thru the stock rear.

dhuskers_11 · 10-11-2006, 06:35 PM

even if you put in new gears, a detroit true trac, and a girdle?

cuban3jumper · 10-11-2006, 09:12 PM

Quote:

Originally Posted by dhuskers_11

even if you put in new gears, a detroit true trac, and a girdle?

You're talking about a totally different rear end now LOL. Oh and trust me for some reason chevy stock performance parts shit on fords...

MattJ · 10-11-2006, 10:17 PM

irrelevant comparison. the v6 is not for power so why stick extra money into the rear end and make it strong? that would be throwing money out the window for no reason. Besides... the corvette doesnt use a live axle setup, it has a Dana IRS setup which blows the cobra irs out of the water.

GREG@SN95 · 10-11-2006, 11:21 PM

Quote:

Originally Posted by MattJ

irrelevant comparison. the v6 is not for power so why stick extra money into the rear end and make it strong? that would be throwing money out the window for no reason. Besides... the corvette doesnt use a live axle setup, it has a Dana IRS setup which blows the cobra irs out of the water.

+1

completely different rear...

vette = IRS

vettes leave no room for anything... GM kept it lightwieght and used a smaller rear... and so it would fit...

you are comparing two completey different cars...

its like comparing your left shoe to your left testicle

r3dn3ck · 10-12-2006, 10:09 AM

+2 to that. the inch size is only a measurement of the ring gear diameter. It's not a measurement of strength.

The vette IRS is a neat thing. The car was built around it, instead of the IRS being built around the car like the IRS cobras. If you want to beat on a ford live axle, then build up a 8.8, or upgrade all the way to the nearly unbreakable Ford 9".

10-11-2006, 01:47 PM	#1 (permalink)
the gillz OG, double OG, tripleOG Join Date: Apr 2006 Posts: 271	Corvette rear-ends I read in a MMFF article that the LS1 corvettes come stock with a 7.5 rear. This seems small for the power they put out. Is this true, if so is it possible that the 7.5 is a V6 stang can handle some serious power? If not then what are the main differences.

10-11-2006, 10:17 PM	#7 (permalink)
MattJ Senior Member Join Date: Dec 2004 Location: Racine, WI Posts: 10,243	irrelevant comparison. the v6 is not for power so why stick extra money into the rear end and make it strong? that would be throwing money out the window for no reason. Besides... the corvette doesnt use a live axle setup, it has a Dana IRS setup which blows the cobra irs out of the water. __________________ 2001 Mustang GT Premium - Mineral Grey

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10-11-2006, 06:17 PM	#3 (permalink)
dhuskers_11 Senior Member Join Date: Apr 2006 Posts: 149	i thought they were good to 350?

10-11-2006, 06:35 PM	#5 (permalink)
dhuskers_11 Senior Member Join Date: Apr 2006 Posts: 149	even if you put in new gears, a detroit true trac, and a girdle?

10-12-2006, 10:09 AM	#9 (permalink)
r3dn3ck Wowbagger hates me too! Join Date: Nov 2005 Location: Magrathea/California Posts: 7,015	+2 to that. the inch size is only a measurement of the ring gear diameter. It's not a measurement of strength. The vette IRS is a neat thing. The car was built around it, instead of the IRS being built around the car like the IRS cobras. If you want to beat on a ford live axle, then build up a 8.8, or upgrade all the way to the nearly unbreakable Ford 9".