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T-56 Tranny... How Tough Are They

  • Thread starter Thread starter TweekedGT
  • Start date Start date Aug 6, 2007

TweekedGT

New Member
Jul 22, 2004
1,274
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0
Alberta
Aug 6, 2007
#1
  • Aug 6, 2007
  • #1
Hey Guys, I really need a new tranny. I've been looking at TKO600's and T-56's. The T-56 is more expensive but is a direct swap instead of fooling around with tranny mounts and clutches as I would have to do with the TKO. How much power are the T-56's handling? I want to hear from you guys making big power. I know I see a lot of videos on Streetfire and such with some high powered 03-04 Cobra's, just wondering if they are mostly stock T-56 tranny's or have they had tranny swaps or internal upgrades. I'm making 453rwhp and 457rwtq right now and soon to be higher so I want something that will last. Thanks.
 

SVT98Snake

New Member
Apr 15, 2005
258
0
0
OK, USA
Aug 6, 2007
#2
  • Aug 6, 2007
  • #2
I know of 2 making 680 rwhp and one almost 800 rwhp.

I think Manny at HPP is making somewhere over 800 and I think he still has a T56

All has to do with supporting mods.

With your mods you will be fine.
 
U

Uncle Meat

Banned
Jun 13, 2002
0
1
0
Prattville, Alabama
Aug 7, 2007
#3
  • Aug 7, 2007
  • #3
The stock T56 in the 03/04 Cobra does have a weak point and that's the input shaft. Ford for some stupid reason went with a 10-spline. Most guys with high HP 03/04's swap out the stock 10-spline for a 26-spline from Liberty. Once you've done that they are pretty tough and failure rates are pretty low.

U.M.
 

SVT98Snake

New Member
Apr 15, 2005
258
0
0
OK, USA
Aug 7, 2007
#4
  • Aug 7, 2007
  • #4
Uncle Meat said:
The stock T56 in the 03/04 Cobra does have a weak point and that's the input shaft. Ford for some stupid reason went with a 10-spline. Most guys with high HP 03/04's swap out the stock 10-spline for a 26-spline from Liberty. Once you've done that they are pretty tough and failure rates are pretty low.

U.M.
Click to expand...

Exactly. I should have put that in. My buddy with the stolen KB 04 snapped his in two....he was "only" making 640 rwhp
 

SVT32VDOHC

waiting for the next hack atta
Founding Member
Nov 22, 2001
3,501
28
119
Motor City
Aug 8, 2007
#5
  • Aug 8, 2007
  • #5
They are bullet proof, but a careless drive can break one in a stock Cobra, so shift smart!! I drove my dad's GT500 Saturday night, and that 6 speed is a dream. I would love to sell my Cobra and buy one, but why? I have put 400 of the 850 miles on his!!!
 
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