T-5 and Tremec Manuals
 

Picked this up off the British Cobra Club site:

Rebuild manuals for the following transmissions

Tremec T5
Tremec T3550/TKO
Tremec T56

heres the link - http://66.96.130.106/archives/2002/0...ns/index.shtml


Roscoe

Good site. I have never understood the ratios that Tremac came up with for these transmissions. A 3.27 first??? Is the assumption that people are running 1.85 rear end ratios, or are the cars being used as log skidders during the day.

Cal,
I believe the Tremec was originally a truck trans. Or they borrowed the first gear ratio from an old knucklehead.
Roscoe

Mine could use a lower 1st gear with a 2.72 rear end. The Mopar tranny is a little high.

Tremec is a Mexican truck transmission. Trans strength and low first gear was great for mid '80's Mustangs running 2.73 gears in back, non-World class T-5's rated for only 260 FPTQ, and breaking a lot.

On of these days, Tremec, or an aftermarket supplier (Richmond?) will make a close ratio gearset for a Tramec like the 2.95 low in the T-5Z.

When sourcing the trans, posed the same question to Liberty Transmissions. T-5Z or Tremec for a street driven Cobra, tweaked 351W motor. And why. (Liberty makes a blueprinted version of the T-5Z, and it shifts like a Honda.)

T-5 made for cars, Tremec made for trucks. T-5 smoother shifting, and better suited to 3.23 - 3.73 rear gears. Tremec offers a better margin of safety for abuse near it's strength limits. T-5, although marginally not as strong, is smoother for street use. Major weak point in T-5 are shifter forks. Protect with positive stop aftermarket shifter. Street tires largely what protects trans. They'll spin, particularly in a light car, before trans is overstressed.

Bottom line, for drag racing, running slicks, pushing the trans to it's strength limit, the Tremec will last longer but either will eventially break. With the philosophy of, build the car the way you intend to drive it, picked the blueprinted T-5Z.

Other thoughts were, If the car was pushed to the extent I risked breaking the trans, I would be spending substantially more money on legal fees defending my drivers license, than repairing or replacing the transmission.

Roscoe:
Good site... Just what I needed to solve my problem.
You are an amazing source of info.
BigMike

You can download tremec shop manuals at www.ttcautomotive.com, search for product literature, you will find downloads for most tremec transmissions.:)