TRANSMISSION

TRANSMISSION

The early Bronco came from Ford with either a 3 speed manual transmission (66-77) or the C4 3 speed automatic (73-77). One of the most popular transmission conversions has been the NP (New Process) 435.

Transmission Gear Ratios
1st 2nd 3nd 4th 5th
RAT 3 speed 3.41 1.86 1.00
RAN 3 speed 2.99 1.75 1.00
NP 435 6.69 3.34 1.79 1.00
T 18 6.32 3.09 1.69 1.00
C 4 auto 2.46 1.46 1.00
NV 4500 5.61 3.04 1.67 1.00 .73
NV 3550 4.01 2.32 1.40 1.00 .78