Slick 60's

My 66 M-100 has a 4 speed transmission. Was there more than one 4-speed available for my truck? What kind of transmission is it, and where can I find info on ratio's, etc..

Thank you!

Derek.

That's it, 4sp with granny gear.

There may have been a 3sp with OD though.

the only 2 are the np435 and the warner t18.


easy way to tell what you have, np 435 reverse is right and toward the seat, warner is right and toward the dash

http://www.novak-adapt.com/knowledge/t18_t19.htm

http://www.novak-adapt.com/knowledge/np435.htm

Thanks for info guys!