88 Mustang Rearend Swap

trevans · December 27th, 2011, 08:50 PM

I own a 88 mustang GT convertible, and I have found a rearend out of a 93 cobra. The cobra rearend has disk brakes and the owner installed 3.73 gear set. Before I purchase the rearend I have a few concerns and questions I was hoping you guys could help with. The cobra rearend is .75" wider on each side due to the axles, could I use my stock axles to keep the rear wheels from sticking out? I also know I have to replace the Master cylinder any idea what else would need to be replaced? Thanks for any help you can give me.

ryanw · December 27th, 2011, 09:10 PM

im not sure but i think the cobra rear axles are 5 lug and yours is 4 lug

trevans · December 27th, 2011, 09:14 PM

The cobra rearend is a 4lug

ryanw · December 27th, 2011, 09:17 PM

I stand corrected...Hmmm i wonder why it sticks out farther ?

trevans · December 27th, 2011, 09:20 PM

the cobra axles are 3/4" longer, according to other mustang sites.

FastStang91Lx · December 31st, 2011, 12:37 AM

Maybe it's because of the disc brake setup. The SN rear's are 3/4 inch wider too.

ryanw · December 31st, 2011, 02:22 AM

^^^ i was thinking that to, but after i said i thought it was a 5 lug and i was wrong....i didnt want to be wrong twice in the same thread....lol

FastStang91Lx · December 31st, 2011, 07:53 AM

Only the Cobra R was 5 lug, lol. Actually a common mistake people make.

December 27th, 2011, 08:50 PM	#1
trevans Newbie Join Date: Feb 2011 Posts: 24 iTrader: 0 reviews	88 Mustang Rearend Swap I own a 88 mustang GT convertible, and I have found a rearend out of a 93 cobra. The cobra rearend has disk brakes and the owner installed 3.73 gear set. Before I purchase the rearend I have a few concerns and questions I was hoping you guys could help with. The cobra rearend is .75" wider on each side due to the axles, could I use my stock axles to keep the rear wheels from sticking out? I also know I have to replace the Master cylinder any idea what else would need to be replaced? Thanks for any help you can give me.

December 27th, 2011, 09:10 PM	#2
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	im not sure but i think the cobra rear axles are 5 lug and yours is 4 lug __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

December 27th, 2011, 09:17 PM	#4
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	I stand corrected...Hmmm i wonder why it sticks out farther ? __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

December 31st, 2011, 12:37 AM	#6
FastStang91Lx I Post Entirely Way Too Much 1991 Mustang LX 5.0 Join Date: Jan 2010 Location: Minnesota Posts: 5,572 iTrader: 2 reviews	Maybe it's because of the disc brake setup. The SN rear's are 3/4 inch wider too. __________________ Point made in less than a few hours with minimal response. http://www.moddedmustangs.com/forums...ml#post4465184

December 31st, 2011, 02:22 AM	#7
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	^^^ i was thinking that to, but after i said i thought it was a 5 lug and i was wrong....i didnt want to be wrong twice in the same thread....lol __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

December 27th, 2011, 09:14 PM	#3
trevans Newbie Join Date: Feb 2011 Posts: 24 iTrader: 0 reviews	The cobra rearend is a 4lug

December 27th, 2011, 09:20 PM	#5
trevans Newbie Join Date: Feb 2011 Posts: 24 iTrader: 0 reviews	the cobra axles are 3/4" longer, according to other mustang sites.

December 31st, 2011, 07:53 AM	#8
FastStang91Lx I Post Entirely Way Too Much 1991 Mustang LX 5.0 Join Date: Jan 2010 Location: Minnesota Posts: 5,572 iTrader: 2 reviews	Only the Cobra R was 5 lug, lol. Actually a common mistake people make. __________________ Point made in less than a few hours with minimal response. http://www.moddedmustangs.com/forums...ml#post4465184

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