2002 v6 rear end swap for gt - Mustang Evolution

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Old 05-08-2012, 06:03 PM   #1
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2002 v6 rear end swap for gt

Does the gt rearend bolt up to v6. is gearing diferent? are brakes bigger? is posivive engagement? can u do this and is improvement form stock?
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Old 05-08-2012, 06:26 PM   #2
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Yes to all .. Most GT rear ends are posi trac.. brake and rotor set up are bigger..

---------- Post added at 05:26 PM ---------- Previous post was at 05:25 PM ----------

Gearing is different but most just got 327 with a locker in a 8.8 housing
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Old 05-08-2012, 06:44 PM   #3
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Quote:
Originally Posted by mustangg2000
Yes to all .. Most GT rear ends are posi trac.. brake and rotor set up are bigger..

---------- Post added at 05:26 PM ---------- Previous post was at 05:25 PM ----------

Gearing is different but most just got 327 with a locker in a 8.8 housing
Forgot to ask manual or auto.... Tsk tsk man your slipping
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Old 05-08-2012, 06:49 PM   #4
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Ah true true splines be different boooo..
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Old 05-08-2012, 06:51 PM   #5
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Talking about gearing.. U joints will bolt no matter. Manual gears are lower than auto's.
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Old 05-08-2012, 06:52 PM   #6
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See that's y your around to back a BROTHA up lol
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Old 05-08-2012, 06:53 PM   #7
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Originally Posted by mustangg2000
See that's y your around to back a BROTHA up lol
That's big brotha to you!!!! Lol
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Old 05-08-2012, 06:58 PM   #8
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That .50 cal is after u then
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Old 05-08-2012, 09:55 PM   #9
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Re: 2002 v6 rear end swap for gt

The 8.8" rearend from a GT will swap in place of your 7.5" rearend.

The rear brakes are the same, calipers and rotor size are the same as the v6.
All 94-04 8.8" rearends come stock with a traction lok differential (posi unit, limted slip).

The stock gearing is also the same...99-04 8.8" rears had 3.27 gears, same as the 7.5" rearends.

The only major difference is the addition of quad shocks...they usually come with the rearend and will bolt up in place on your v6 frame. The bolt holes are on the frame.

It is a definite benefit to upgrade to a 8.8" rearend...you get the added strength as well as the traction lok unit. Depending on the condition/mileage of the rearend you may want to buy a rebuild kit for the gears and the traction lok. It would also be a good time to install taller gears too...
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Old 05-08-2012, 10:16 PM   #10
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Quote:
Originally Posted by sonicpony03
The 8.8" rearend from a GT will swap in place of your 7.5" rearend.

The rear brakes are the same, calipers and rotor size are the same as the v6.
All 94-04 8.8" rearends come stock with a traction lok differential (posi unit, limted slip).

The stock gearing is also the same...99-04 8.8" rears had 3.27 gears, same as the 7.5" rearends.

The only major difference is the addition of quad shocks...they usually come with the rearend and will bolt up in place on your v6 frame. The bolt holes are on the frame.

It is a definite benefit to upgrade to a 8.8" rearend...you get the added strength as well as the traction lok unit. Depending on the condition/mileage of the rearend you may want to buy a rebuild kit for the gears and the traction lok. It would also be a good time to install taller gears too...
The gears in the rear are different ratio from a manual shift and a automatic... Manual shift cars have a higher gear ratio than the rear gears out of a automatic car... Example a 2.73 gear ratio behind a aode and a 3.27 behind a t-5.

That's just a example I thought up to give you a idea. It might be the other way around with manuals having a lower gear ratio. But I know the ratios are not the same.
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Old 05-08-2012, 10:41 PM   #11
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I have a t5 have 327
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Old 05-09-2012, 07:07 PM   #12
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Re: 2002 v6 rear end swap for gt

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Originally Posted by 95v686gt View Post
The gears in the rear are different ratio from a manual shift and a automatic... Manual shift cars have a higher gear ratio than the rear gears out of a automatic car... Example a 2.73 gear ratio behind a aode and a 3.27 behind a t-5.

That's just a example I thought up to give you a idea. It might be the other way around with manuals having a lower gear ratio. But I know the ratios are not the same.
Yes you are correct...the ratios did differ based on the transmission. I believe the autos had 3.08s. The 2.73's were the standard ratio for manuals with the 3.27's being an option. I know I've seen some GT's with the 2.73's...they had the 2L73 code on the diff cover.

I'm 99% sure the 99-04 auto and manual v6/GT's had 3.27's standard and no ratio upgrade as an option. Probably a good thing as 2.73's and 3.08's would suck on those cars.
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Old 05-25-2012, 09:35 AM   #13
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I just found a 8.8 with 3.55s that's not a stock gear?
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Old 05-25-2012, 09:55 AM   #14
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Re: 2002 v6 rear end swap for gt

I don't believe so...do you know what year the 8.8" came out of?

I'm not sure if one of the Roush/Saleen etc cars had optional gearing like that.

IIRC the 99-04 8.8" from the GT's had 3.27's, so either that rearend has been upgraded from 3.27's to 3.55's or came from a car that got 3.55's as an option if that was offered.
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Old 05-25-2012, 10:05 AM   #15
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For proper width you need to make sure you get a rear from a 99-04
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Old 05-25-2012, 10:48 AM   #16
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He said its out of a 95 sn
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Old 05-25-2012, 10:48 AM   #17
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It's going to be a half inch narrower on each side
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Old 05-25-2012, 01:52 PM   #18
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Quote:
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I just found a 8.8 with 3.55s that's not a stock gear?
3.55 is a 03-04 cobra gear I don't believe it came in anything else if I am correct
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Old 05-25-2012, 02:57 PM   #19
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Didn't mach1 come with those
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Old 05-25-2012, 03:00 PM   #20
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Didn't mach1 come with those
Yupadoodle!
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Old 06-01-2012, 10:52 PM   #21
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Re: 2002 v6 rear end swap for gt

Quote:
Originally Posted by sonicpony03 View Post
The 8.8" rearend from a GT will swap in place of your 7.5" rearend.

The rear brakes are the same, calipers and rotor size are the same as the v6.
All 94-04 8.8" rearends come stock with a traction lok differential (posi unit, limted slip).

The stock gearing is also the same...99-04 8.8" rears had 3.27 gears, same as the 7.5" rearends.

The only major difference is the addition of quad shocks...they usually come with the rearend and will bolt up in place on your v6 frame. The bolt holes are on the frame.

It is a definite benefit to upgrade to a 8.8" rearend...you get the added strength as well as the traction lok unit. Depending on the condition/mileage of the rearend you may want to buy a rebuild kit for the gears and the traction lok. It would also be a good time to install taller gears too...
OK but what size gear for more off the line torque, and what size for a freeway flyier??? and what company or brand is the best? better question, what is the best year or modle gt r.end for this swap?(top end performance) and to up grade gearing?
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