8.8 rear?

tarmon8r · 01-27-2005, 08:01 PM

Hey jester. Look at the pic on the link you put up.. The actual pic of the 8.8 has the bolts at 12 and 6 while the gasket is at the before mentioned oreintation. Could the gasket just be rotated 90 degrees in the pic and not straight up? Cause I was cleaning up and noticed my cover from my other 8.8 rear, rear is not at my location, but replaced with a girldle, so i have the old one laying on the floor, is 12 and 6. How true is that fact? Dead certain? Dont want to start anything, just not very knowledgeable. Just looking for clarification.. Thanks..

justins89stang · 01-27-2005, 09:04 PM

one way to tell the difference by looking is that the 7.5s cover has flat sides in the top and bottom and it is rounded in the ends so it looks like an oval shape. The 8.8 is more a square shape and the 4 sides are the same....If that makes any sense at all??? Anyways, as far as the bolts go, both the 8.8 and the 7.5 have bolts at 6 and 12.

Ieatcamaros · 01-27-2005, 10:16 PM

tarmon8r, don't pay attention to the gasket pictures. Look at the actual differential pics beside them. I once thought my 89 GT had a 7.5 because of the gasket pics I had seen. That one of the 8.8 is rotated 90 degrees like you said.

~The Jester~ · 01-28-2005, 03:16 PM

Some of the earlier 8.8 (Trucks and Exploders, before they put them in Stangs) had bolts at 12 & 6, like the diff picture. When they put the 8.8 in the Stangs, the bolts are spread apart on the top & bottom, like the gasket picture.

If you look at the different bolt patterns, the gaskets do look like they'll interchange. The 7.5 has bolts at 12/6 and then 4 others that straddle the axle tubes. The 8.8 has 2 bolts dead on the axle tubes, and the 4 at the top and bottom are spread apart. Turn the gasket a 1/4 turn, and presto.

I should have clarified a little bit more on my last post. If you for SURE have a Stang rear, the 12/6 bolts is a very good indication. Otherwise, go with the rounded/squared off look. Look for the factory ID tag (Yeah right!) that'll tell you exactly what it is. You can only make an educated guess at best, the only 100% way to tell is the tag, or measure the ring gear.

Sorry if I confused anyone!

01-27-2005, 08:01 PM	#1
tarmon8r Registered Member Join Date: Jun 2002 Location: manassas, va Posts: 186	Re: 8.8 rear? Hey jester. Look at the pic on the link you put up.. The actual pic of the 8.8 has the bolts at 12 and 6 while the gasket is at the before mentioned oreintation. Could the gasket just be rotated 90 degrees in the pic and not straight up? Cause I was cleaning up and noticed my cover from my other 8.8 rear, rear is not at my location, but replaced with a girldle, so i have the old one laying on the floor, is 12 and 6. How true is that fact? Dead certain? Dont want to start anything, just not very knowledgeable. Just looking for clarification.. Thanks.. __________________ 1983 mustang, 393 cubic inch stroker small block, victor jr heads and intake, gold race 1.6 roller rockers. comp cam 304, 244@ .050. .576" hydralic retro roller cam,lunati rods. block was o-ringed,10:1 forged pistons, speed pro fit fit rings, clevite bearings,msd distributor and igniton,be cool huge radiator, black lite electric fan, march underdrive pulleys, mildon deep sump oil pan, mac 1 3.4" long tube headers, 3" dr gas x-pipe and mac exhaust,ARP bolts. car weighs 2900 lbs w/out driver, sub frames, weld wheels, mickey thompson sportsman pro 26 x 10.5 x 15's,#8 fuel line steel braided

01-27-2005, 09:04 PM	#2
justins89stang Registered Member Join Date: Jan 2005 Posts: 10	Re: 8.8 rear? one way to tell the difference by looking is that the 7.5s cover has flat sides in the top and bottom and it is rounded in the ends so it looks like an oval shape. The 8.8 is more a square shape and the 4 sides are the same....If that makes any sense at all??? Anyways, as far as the bolts go, both the 8.8 and the 7.5 have bolts at 6 and 12.

01-27-2005, 10:16 PM	#3
Ieatcamaros Domestic Rice really sucks! Join Date: Apr 2002 Location: KY Posts: 973	Re: 8.8 rear? tarmon8r, don't pay attention to the gasket pictures. Look at the actual differential pics beside them. I once thought my 89 GT had a 7.5 because of the gasket pics I had seen. That one of the 8.8 is rotated 90 degrees like you said. __________________ The sig says it all.

01-28-2005, 03:16 PM	#4
~The Jester~ Rat Killer Join Date: Aug 2002 Location: Cold ass Ohio Posts: 1,143	Re: 8.8 rear? Some of the earlier 8.8 (Trucks and Exploders, before they put them in Stangs) had bolts at 12 & 6, like the diff picture. When they put the 8.8 in the Stangs, the bolts are spread apart on the top & bottom, like the gasket picture. If you look at the different bolt patterns, the gaskets do look like they'll interchange. The 7.5 has bolts at 12/6 and then 4 others that straddle the axle tubes. The 8.8 has 2 bolts dead on the axle tubes, and the 4 at the top and bottom are spread apart. Turn the gasket a 1/4 turn, and presto. I should have clarified a little bit more on my last post. If you for SURE have a Stang rear, the 12/6 bolts is a very good indication. Otherwise, go with the rounded/squared off look. Look for the factory ID tag (Yeah right!) that'll tell you exactly what it is. You can only make an educated guess at best, the only 100% way to tell is the tag, or measure the ring gear. Sorry if I confused anyone! __________________ d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply.....

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