T-56 upgrade?

rreynold6 · Nov 14, 2006

The T45 in my '96 Mystic Cobra needs a second gear synchronizer and 1-2 shifting fork. Still driveable but only allows slow deliberate shifts to second. My question: Is there a way to swap to a T-56 or TKO and still have a working speedometer? Are there any manual speedo adapters available? If I have to pull the tranny and repair/replace it I feel like it would only make sense to replace it with a better unit but I want everything to work.

SaleenGT2001 · Nov 14, 2006

you can swap in either and the speedo will still work. just amke sure to tell whoever you order it from that you have a mechanical speedo. i would highly recomend the T56. i installed mine about 3 weeks ago and i love it!!!

HoustonGT · Nov 14, 2006

SaleenGT2001 said:
you can swap in either and the speedo will still work. just amke sure to tell whoever you order it from that you have a mechanical speedo. i would highly recomend the T56. i installed mine about 3 weeks ago and i love it!!!

Saleen, how much did the tranny upgrade cost altogether?

6SpeedLX · Nov 14, 2006

use the search function, ive posted about this many times..i love my T56

SaleenGT2001 · Nov 14, 2006

i have $2000 in the viper trans shifter and driveshaft, $200 in a clutch disc, and $40 in the safety loop. with all the small parts i would say i have about $2500 in the entire swap.

ADRENLN · Nov 15, 2006

i thought the t-56 made our cars real sluggish down low in the rpm.

Duke309 · Nov 15, 2006

thats why you see most guys with the t-56 with atleast 4.10s if not 4.30s

Rickyll7 · Nov 15, 2006

4.10

SaleenGT2001 · Nov 15, 2006

i have 3.90's and it is plenty strong down low. i have almost no tire spin even on street tire at the track. i have about another 8 mph in 1st than i did with my 3650.

ADRENLN · Nov 15, 2006

no tire spin with a blower and street tires! that sounds like a dog down low. it might actually be good for times though because you have the traction the whole time. it just sound like its lagging if it cant break the tires loose.

ADRENLN · Nov 15, 2006

no tire spin with a blower and street tires! that sounds like a dog down low. it might actually be good for times though because you have the traction the whole time. it just sound like its lagging if it cant break the tires loose.

ADRENLN · Nov 15, 2006

no tire spin with a blower and street tires! that sounds like a dog down low. it might actually be good for times though because you have the traction the whole time. it just sound like its lagging if it cant break the tires loose.

ADRENLN · Nov 15, 2006

no tire spin with a blower and street tires! that sounds like a dog down low. it might actually be good for times though because you have the traction the whole time. it just sound like its lagging if it cant break the tires loose.

ADRENLN · Nov 16, 2006

ummmm....what the hell just happend!!!!! lol

HoustonGT · Nov 16, 2006

ADRENLN said:
ummmm....what the hell just happend!!!!! lol

Post whore!

00s281sc368 · Nov 16, 2006

ADRENLN said:
i thought the t-56 made our cars real sluggish down low in the rpm.

1st gear is longer so you get less wheel spin and can push it to 45mph or so

Following ratios are closer, 4th is 1:1 identical.
Then you get 5th OD and 6th at 0.62 OD for the freeway cruising. Lovely!

Maybe you think it's sluggish down low cauz you don't make power there... I never had this feeling, I just went 315 in the rear to avoid wheel spin on 3rd gear at 50mph

Shiroelex · Nov 16, 2006

Hmm. I think that T56 might be a good idea in my case then. I would love to be able to stay on the freeway longer. Is that trans a good one for the quarter mile?

ADRENLN · Nov 16, 2006

i dont have the tranny, i just read that people need the 410 gear or higher to make the t-56 feel good. i really wouldnt want to go over 3.73 in the rear which is what i have now. any higher and rpm would be too high while driving.

although going to 45mph in first sounds awsome.

speedfreak98r · Nov 16, 2006

With two o/ds, I think I'd get the 4.10s.

YardSpecial · Nov 16, 2006

I also think 3.73-3.90 would be perfect, any lower and you have a 5 speed again. LOL

You lose HP with this mod I hear thru drivetrain loss.

I was gonna buy from DD cause they have a kit with driveshaft.

Kit consists of a rebuilt 03-04 Cobra T56 transmission, cross member mount and aluminum driveshaft with the correct slip yoke. All the parts you need for the conversion. These transmissions are rebuilt by the technicians at D&D Performance, a Tremec elite Distributor and Factory Authorized repair center

K3 BA3(Ford 4.6 Mech.Speedo) Standard version into 96-98 Cobra $2799

T-56 upgrade?

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