Tech article by Jon Hanna (Admin)

Following are photos of the popular NP435 4 speed installation. This transmission is a much stronger unit than the original 3 speed found in most early Broncos. 2nd, 3rd and 4th gears are comparable to 1st, 2nd and 3rd gears in the stock 3 speed. However the NP435 has a much lower 1st gear (sometimes called a “granny” or “creeper” gear) which allows for much more control when rock crawling.

Comparisons of the stock Bronco 3 speed and NP435 4 speed.

Installation from below.

Shifter hole and cover plate.

Adaptor

This entry was posted on Wednesday, January 14th, 2009 at 8:39 am and is filed under - Manual, Transmission. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.