85 Mustang Rear End Help

85 mustang project · Mar 12, 2014

i have a 85 mustang with a 7.5 rear end in it and Im doing the v8 swap I was just wundering what year of 8.8 rear ends will bolt right in and if I can get them out of a pickup or other car or doesn't it matter as long as its a 8.8 thanks for the help

Shawneebear93 · Mar 13, 2014

Any 8.8" rearend out of a Fox Mustang will "bolt in." That being said, I don't think Fox Mustangs had 8.8" rears until '85 or '86. IIRC, the brake lines are routed differently so you'll need to work that out as well. Additionally, 8.8" rears out of Fox Thunderbirds or SN-95's should bolt in but have a slightly wider track.
There should be some threads covering this on the site, probably in the 5.0 section as most people who do the V8 swap end up there.

85 mustang project · Mar 13, 2014

thanks for the reply after all I decided not to do the swap im just going to get a 2.3 turbo instead will my 7.5 rear end hold up if I get a 2.3 with bunch of mods

fess40 · Mar 15, 2014

I would think the 7.5 would hold up fine with normal driving. The 2.3t can put up good numbers, but they're not known for their gear shredding torque.

Shawneebear93 · Mar 16, 2014

7.5 will be fine but most eventually upgrade to an 8.8 just for the sake of getting traction control and rear discs.

85 mustang project · Mar 16, 2014

i think im going to do it right and just start off with a 8.8 what vehicle can I get a 8.8 out of theres not many mustangs around where im from will one work out of a ford pickup n what years

Shawneebear93 · Mar 19, 2014

I'm not sure. Google should get you some answers. Also search through this website, there's bound to be some threads covering this.

85 mustang project · Mar 20, 2014

i found a 96 ford ranger rear end will that fit

fess40 · Mar 20, 2014

I used a turbo coupe rear for the discs.

Mustang5L5 · Mar 21, 2014

85 mustang project said:
i think im going to do it right and just start off with a 8.8 what vehicle can I get a 8.8 out of theres not many mustangs around where im from will one work out of a ford pickup n what years

86-93 Mustang 5.0 with drum brakes
86-90 Thunderbird/Cougar with drum brakes
94-98 Mustang GT/Cobra for 5-lug rear disks (keep in mind will require additional mods for e-brake and front brake and MC modifications as well)
87-88 Thunderbird Turbo Coupe with 4-lug disk brakes (will require MC swap as well)

85 Mustang Rear End Help

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