There are
Ford, Chevy, and Dodge versions of the NP435. The best version for
most Jeep owners would be the Ford version, but even this version
has some variations in the crucial input bearing retainer size. The
advantage of this transmission is the first gear is slightly lower
than first on a wide ratio T-18. Second gear is also lower giving
this transmission smaller a gap between first and second than the
T-18.