Well i just bought a 99 g.t. conv. mustang 5 speed in january and my trans went to hell after i let a friend borrow it (smh) so i have to change my trans.
i wanted a upgrade so i bought a T56..now
i already have a spec stage 2 clutch in it for the 99 gt so when i buy the fly wheel do i have to buy a 03 cobra (t56) flywheel or a 99 g.t flywheel
and what else do i need to convert it to a 6 speed??
i have the aluminum drivetrain already what else do i need and where can i find them on the internet
give them a call, i think they sell the kits for the swap. from what ive seen/read, you need the tranny, driveshaft (swapping out the rear flange), tranny mount, and crossmember (which might need to be modified, not sure). as for the flywheel/clutch, so long as the t-56 still has the original input shaft, you are good to go with what you have and you need to buy the flywheel for the 99gt, if you buy it for the cobra you will need to get a cobra clutch as well (cobra flywheels are made to fit the bigger 11" cobra clutch)
as for finding them on the internet, you can always try ebay see what you can find there just be careful and check the sellers rating. personally i would go thru ford for any OE parts.
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RIP Gloria A. Torres
4/26/61 - 10/30/07
The best Mom-lady I could have ever asked for
flywheel bolts are different, crossmember, clutch. and few other things.
the clutch between the gt and the cobra are different, but the 99 clutch will work with the t56, right? this is what ive been told, same with the flywheel. the flywheel bolts being different is news to me tho.
__________________
RIP Gloria A. Torres
4/26/61 - 10/30/07
The best Mom-lady I could have ever asked for
the clutch between the gt and the cobra are different, but the 99 clutch will work with the t56, right? this is what ive been told, same with the flywheel. the flywheel bolts being different is news to me tho.
as long as the inputshaft for the T56 is a 10 spline instead of a 26 spline like i have a feeling it is, then you can use the stock clutch disc. otherwise he needs to get everything. might as well anyway. you can probably get away with a cobra trans mount, crossmember, and driveshaft.
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nope, from what ive read, the 26 spline input shaft is an aftermarket upgrade you can make, which for a stock GT isnt really needed. stock should be 10 spline
__________________
RIP Gloria A. Torres
4/26/61 - 10/30/07
The best Mom-lady I could have ever asked for
nope, from what ive read, the 26 spline input shaft is an aftermarket upgrade you can make, which for a stock GT isnt really needed. stock should be 10 spline
Ford Cobra T56's are all 10 spline input, you are correct, however, upgrading to a 26 spline is a smart idea. 26 spline is stronger than 10 and the 10 splines tend to twist when abused i.e. powershift. My bone stock GT and T45 that I just replaced with the prototype tranny had a twisted input when we pulled it.
ok so basically i need a 3.55 gear
drivetrain (03 cob.)
the crossmembers
my fly wheel (99 g.t.)
and a tranny mount
and i should be ok ...is thhat it?
thanks For all the Help!!
dont forget the wiring, im sure there is also some differences between the t56 and the t45, but that sounds like it should be it. you should, however, look into get a lower (numerically higher) gear, i think the cobra's 1st gear is 2.66 compared to the 3.35 on the t45, which should allow you to go lower (numerically higher) with the gears. (rj8806, am i right on this one?)
Quote:
Originally Posted by rj8806
Ford Cobra T56's are all 10 spline input, you are correct, however, upgrading to a 26 spline is a smart idea. 26 spline is stronger than 10 and the 10 splines tend to twist when abused i.e. powershift. My bone stock GT and T45 that I just replaced with the prototype tranny had a twisted input when we pulled it.
Richard
on a bone stock gt? i didnt think we made the power (even lightly modded) to twist anything...good to know.
to the OP, i guess if you want to spend a little more time, money, and effort, now would be the best time to upgrade to the 26 spline input shaft since the tranny will be off already. it would be a nice added insurance to have.
__________________
RIP Gloria A. Torres
4/26/61 - 10/30/07
The best Mom-lady I could have ever asked for
dont forget the wiring, im sure there is also some differences between the t56 and the t45, but that sounds like it should be it. you should, however, look into get a lower (numerically higher) gear, i think the cobra's 1st gear is 2.66 compared to the 3.35 on the t45, which should allow you to go lower (numerically higher) with the gears. (rj8806, am i right on this one?)
on a bone stock gt? i didnt think we made the power (even lightly modded) to twist anything...good to know.
to the OP, i guess if you want to spend a little more time, money, and effort, now would be the best time to upgrade to the 26 spline input shaft since the tranny will be off already. it would be a nice added insurance to have.
You're correct. If it is a factory T56 out of a Cobra it is a 2.66 1st gear. Check the trim tag on the tranny. On the 2nd line of numbers you will see " TUET 1694". If it is an aftermarket T56, the numbers will read "TUET 1259" for mechanical speedo or "TUET 1260" for electronic speedo. If it is an aftermarket, the ratio is actually 2.97. Either way, with that tall 1st gear, you can run a lower(higher number) rear gear. I would recommend at least 3.73's
As for twisting the 10 spline, it doesn't take much. Like I said, my bone stock '00GT had a twisted input and I don't even race it. Been known to light 'em up at a light though.
T45 converting to t56 PLease help 
im lost
