2002 v6 rear end swap for gt

[TOMKAT024]

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?

[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

[95v686gt]

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

[mustangg2000]

Ah true true splines be different boooo..

[95v686gt]

Talking about gearing.. U joints will bolt no matter. Manual gears are lower than auto's.

[mustangg2000]

See that's y your around to back a BROTHA up lol

[95v686gt]

Originally Posted by mustangg2000

See that's y your around to back a BROTHA up lol

That's big brotha to you!!!! Lol

[mustangg2000]

That .50 cal is after u then

[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...

[95v686gt]

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.

[mustangg2000]

I have a t5 have 327

[sonicpony03]

Originally Posted by 95v686gt

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.

[Surffer227]

I just found a 8.8 with 3.55s that's not a stock gear?

[sonicpony03]

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.

[lowflyn]

For proper width you need to make sure you get a rear from a 99-04

[Surffer227]

He said its out of a 95 sn

[lowflyn]

It's going to be a half inch narrower on each side

[Blackedout03]

Originally Posted by Surffer227

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

[lowflyn]

Didn't mach1 come with those

[Azure]

Originally Posted by lowflyn

Didn't mach1 come with those

Yupadoodle!

[TOMKAT024]

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...

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?