Rear end(;

[Htrlman1]

Just wondering I think they are the same but are the punkins the same in gen 1's and gen 2's. I have a spare and would like to build it up and put it in my gen 2 to wake it up.

 

[mossbergman]

They are identitical. I have one of each, no diffs

 

[chris2523]

basically, all the same.
the base models had 3.07, LSCs with 3.27. all open diffs.

 

[NoLimit95]

You wanna bring me that pumpkin on your way through to Alabama too? Seeing how you're coming down past me and all. I need that and trac-loc...

 

[Htrlman1]

I would Terry but the trip got cancelled and besides that i would like to give my mark a boost with 3.73's and a trac lock Last weekend i got smoked all the way up to 95 by a 08 g37): wasnt to happy about that. These new v6's really kick our a$$ lol. Any mark 8 owner try and race a new Chrysler product with their new v6, wow i was surprised they stay with you up until 80 then the mark leaves them. And my mark isn't stock either lol

 

[KStromberg]

i would like to give my mark a boost with 3.73's and a trac lock

Don't be scared. You have an automatic with overdrive. Put 4.10s or 4.30s in that differential.

If you are certain you want to go with 3.73s though, see here:

http://forums.tccoa.com/showthread.php?p=1446858#post1446858

If you are not a member on TCCOA and want to contact him, here is his business website:

http://www.robstireandauto.com/


That last set will probably go quick.

 

[Sapperfire]

If you're spending the $ on gears for pep...then don't waste it on 3:73, get 4:10

 

[Lux]

4.10's are perfect for these cars...I should have went with 4.30's or higher, but i plan to add boost and a manual trans so the 4.10's should be right on with a sticky enough tire.

Might have been better off with 373's but I'll have plenty of fun roasting off the tires if I cant get it to stick to the street, so its win-win. :shifty:

4.10s or bust

 

[Htrlman1]

with 4.10's will the engine be screaming at 80mph because i do a lot of hwy miles. what rpm is the engine cruising at 70 with 4.10's?

 

[KStromberg]

with 4.10's will the engine be screaming at 80mph because i do a lot of hwy miles. what rpm is the engine cruising at 70 with 4.10's?

About 2550 rpms. So basically 550 rpms over stock 3.27 gears

 

[Htrlman1]

Ok that isn't bad at all. 4.10's here i come, Do the 4.10's with a trac lock make a big deference on the 1/4 mile?

 

[Lux]

with 4.10's will the engine be screaming at 80mph because i do a lot of hwy miles. what rpm is the engine cruising at 70 with 4.10's?

The difference between 373's and 4.10's is like 300 rpms...

 

[Htrlman1]

Ok so i should order 4.10's with is it 28 spline? just don't remember

 

[Lux]

Ford racing 4.10's for the 8.8 (or 373s) whatever you choose. Mostly everyone can agree that no one has anything bad to say bout 4.10s in these cars..

Our Diffs and axles are 28 spline, so is the 99 cobra which is why you use those hubs and parts for the hubswap/diff.

Later cobras with IRS used 31 spline axles, hubs, diffs, which you can use, but you need to get Custom Halfshafts made and unless your pushing 600+ hp 28 spline is sufficent.

 

[DLF]

Later cobras with IRS used 31 spline axles, hubs, diffs, which you can use, but you need to get Custom Halfshafts made and unless your pushing 600+ hp 28 spline is sufficent.

All Cobras ('99-'04) have 28 spline hubs.

'99 Cobras have 28 spline diffs, '01+ are 31 spline.

 

[Htrlman1]

Thanks guys I'll be ordering 4.10's soon

 

[NetKeym]

Deleted.

 

[Htrlman1]

Deleted.

Deleted what?

 

[DLF]

Deleted.

Deleted what?

Ninja edit:

I'm confused, first you said all Cobras 99-04 have 28 spline then you said 01+ are 31 spline. So which is it?

All Cobras ('99-'04) have 28 spline hubs.

'99 Cobras have 28 spline diffs, '01+ are 31 spline.

Don't confuse hubs and diffs, opposite ends of the halfshafts.

 

[Lux]

what doug said