7.5 to 8.8 rear end swap - Mustang Evolution

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Old 02-20-2014, 10:01 PM   #1
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7.5 to 8.8 rear end swap

Hi guys. I'm planning on buying an 8.8 rear soon, the guy wants $40 for it, 124k miles on it. I was wondering, the rear end is off a 99 GT, I have an 02 V6, any differences in gear ratios? And anyone have a write up on how to do the swap? Thanks!
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Old 02-20-2014, 11:23 PM   #2
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Both will have a 3.27 gear ratio.
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Old 02-21-2014, 01:31 AM   #3
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$40? Seems legit.. Bring a tool set and open it up before you buy it, sounds shady as hell to me.

Swap in is simple, 6 bolts hold in the entire rear end (LCA, UCA, and shock bolts). Remove the calipers from their brackets and undo the driveshaft bolts from pinion flange, it's all a direct transfer to the 8.8 so you could say it's pretty much like putting your 7.5 back in.
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Old 02-21-2014, 11:25 AM   #4
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$40?!?! That's chump change. 8.8'a are $200+ here. I agree with David. Check it out before you buy it and make sure it's an 8.8
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Old 02-21-2014, 12:28 PM   #5
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Originally Posted by sam62893 View Post
$40?!?! That's chump change. 8.8'a are $200+ here. I agree with David. Check it out before you buy it and make sure it's an 8.8

Can't do it anyways, he sold it already, he parts out wrecked mustangs, i'm guessing that's why it was so cheap. Right now i'm trying to get ahold of a guy selling his GT with a blown engine for $400, hopefully i can talk to him soon before that one's gone too.
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Old 02-21-2014, 01:22 PM   #6
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Where are you finding these parts so cheap. 8.8 around here are 350-500 and that people that parts them out. And GTs with blown motors are $2000+
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Old 02-21-2014, 02:44 PM   #7
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I paid $280 for a wrecked gt with a running engine.
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Old 02-21-2014, 02:58 PM   #8
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Where are you finding these parts so cheap. 8.8 around here are 350-500 and that people that parts them out. And GTs with blown motors are $2000+

It's Louisiana man, not much appreciation for Mustangs down here
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Old 02-21-2014, 05:36 PM   #9
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You will need 4 jack stands and a big jack. Or 2 jack stands, spring compressor, and a decent jack. 1 ton + hydraulic jack.
If you have a lift you will only need 2 pipe jacks and a transmission jack.
To get the drive shaft bolts off you will need a 12 point socket. Probably a 12 or 13 half inch size. You will also need a impact, breaker bar, or wrench with a pipe. Not sure what size the last 4 bolts are.
Remember to remove the calipers and do not let them hang.
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Old 02-21-2014, 05:37 PM   #10
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Quote:
Originally Posted by sam62893 View Post
$40?!?! That's chump change. 8.8'a are $200+ here. I agree with David. Check it out before you buy it and make sure it's an 8.8

Lol I got my 8.8 out of a '00 gt with 70xxx on it for $100 and it was delivered
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Old 02-21-2014, 05:39 PM   #11
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Originally Posted by samuelsmith View Post
You will need 4 jack stands and a big jack. Or 2 jack stands, spring compressor, and a decent jack. 1 ton + hydraulic jack.
If you have a lift you will only need 2 pipe jacks and a transmission jack.
To get the drive shaft bolts off you will need a 12 point socket. Probably a 12 or 13 half inch size. You will also need a impact, breaker bar, or wrench with a pipe. Not sure what size the last 4 bolts are.
Remember to remove the calipers and do not let them hang.

Why do you need all that stuff? I jacked the back of my car up put the back on stands. Took the shocks loose and the springs came out simple then it was pretty simple the rest of the way
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