Early Bronco Transmission

The early Bronco came from Ford with either a 3-speed manual transmission or a Ford C4 3-speed automatic transmission. The automatic transmission was only offered in 73-77 Ford Broncos and did not have an overdrive gear. We offer a variety of parts to rebuild your factory early Bronco transmission or upgrade to a modern 4-speed or 5-speed manual transmission or automatic transmission with overdrive.

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
AX15 5-Speed	3.83	2.33	1.44	1.00	.79
NV 4500	5.61	3.04	1.67	1.00	.73
NV 3550	4.01	2.32	1.40	1.00	.78

Early Bronco Automatic Transmissions — Automatic Transmissions

Early Bronco Manual Transmissions — Manual Transmissions

Early Bronco Transmission Adapters — Transmission Adapters

14 Items

C4 Automatic to Dana 20 Adapter, 66-77 Ford Bronco SKU: 8331

0 Reviews

$553.99

Ford 6R80 4WD to Dana 20 Transfer Case Adapter - Coyote Swap SKU: 8202

1 Reviews

$687.99

80-93 Ford AOD 2WD Trans to Dana 20 Adapter 23 Spline, 66-77 Ford Bronco SKU: 8327

0 Reviews

$657.99

Ford AODE/4R70W/4R75W Auto to Dana 20 Adapter 27 Spline, 66-77 Ford Bronco SKU: 8330

0 Reviews

$645.99

Trail Edition Gear Banger NP435 Shifter Complete Kit, 66-77 Ford Bronco SKU: 8301NET

7 Reviews

$219.99

700R4 Auto Transmission to Dana 20 Transfer Case Adapter Kit, 66-77 Ford Bronco SKU: 7617

0 Reviews

$577.21

NV3550 Transmission Adapter Kit (No Trans), 66-77 Ford Bronco SKU: 7207

0 Reviews

$924.99

Early Bronco Transmission

Discover top-grade drivetrain and transmission components for your Early Bronco restoration. Whether you're aiming for high-performance upgrades or stock restoration, our parts deliver the power, efficiency, and durability you need for a smooth, powerful ride. With rugged materials and precision engineering, our drivetrain components provide the reliability you can trust on and off the road.