Differance in t-18/19

[Dieselguy123]

Hey all, I was just wondering what the differance is between a t18 and a t19? Is one close ratio? When I had the 4spd in my truck it was a t18 from a 300-6 cyl, it seemed like the gears where a little far apart. I am just curious. -Brad-

 

[Mr_Roboto]

This will tell you everything you need to know. http://www.novak-adapt.com/knowledge/t18_t19.htm

There was a long thread on this a few months back. Basically they are the same transmission, given different names depending on whether they are wide or close ratio.

Generally the 460's and diesels have a close ratio, smallblocks have a wide ratio.

 

[Diesel JD]

Good link...if I ever decide to swap in that T19 I have sitting on the floor maybe I'll get gaskets and seals from these guys...even the master rebuild kit is cheap.

 

[82F100SWB]

T18's don't have a synchronized first gear, it's straight cut. T19's have a syncroed first gear, and, there are 3 ratio sets, My 460 has the wide ratio set like a T18 does(6.32:1 first gear) My diesel has the 5.11 first gear, and I have one kicking around with the 4.02:1 first gear from an 85 diesel.