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Home / 66-77 Ford Bronco Parts / Drivetrain & Transmission / Automatic Transmissions
66-77 Ford Bronco Parts

Automatic Transmission Components for early Ford Bronco

The 66-77 Ford Broncos had one option when it came to an automatic transmission. The C4 Automatic Transmission gave the early Broncos a quality, reliable 3-speed automatic transmission option. For those looking for an upgrade from the stock C4 Transmission, we also offer adapter components to convert your Bronco to either an AOD (Automatic Overdrive) Transmission or a C6 Automatic Transmission. The AOD is a great, relatively easy way to add an automatic transmission with overdrive to your early Bronco. The C6 requires quite a bit more modification to install and is a very stout replacement for the C4 transmission.

C4 Automatic (Stock)

C6 & AOD Swaps

Flexplate/Torque Converter

Shifters - Auto

AOD Oil Pan Dipstick, Braided Stainless, 39 1/4 inch

AOD/AODE/4R70W Oil Pan Dipstick, Braided Stainless, 39 1/4 inch

Part #6551A
$70.00 $63.00
AODE/4R70W to Dana 20 Adapter Kit, 66-77 Ford Bronco

AODE/4R70W to Dana 20 Adapter Kit, 66-77 Ford Bronco

Part #6046
$745.00 $670.50
AOD Selector Shaft & Arm

AOD Selector Shaft & Arm

Part #6043B
$79.95 $71.95
Automatic Flex Plate Bolts

Automatic Flex Plate Bolts

Part #4051
$28.00 $25.20
C4 Automatic Transmission Oil Pan Gasket

C4 Automatic Transmission Oil Pan Gasket

Part #4020A
$8.00 $7.20

C4 Auto Transmission Filter & Gasket Kit

Part #K4021A
$14.00 $12.60
Ford AOD Neutral Safety/Backup Light Switch Pigtail

Ford AOD Neutral Safety/Backup Light Switch Pigtail

Part #4036P
$40.00 $36.00
Bell Housing Bolts, C-4 Automatic

Hardware Kit for C4 Automatic Bell Housing

Part #4047B
$15.00 $13.50
Red Line D4 Automatic Transmission Fluid, 1qt.

Red Line D4 Automatic Transmission Fluid, 1qt.

Part #R30504
$19.00 $17.10
Torque Converter Nuts, C-4 Automatic

Torque Converter Nuts, C4 Automatic

Part #4053
$9.00 $8.10
Transmission Tunnel Cover Sheetmetal, 66-77 Ford Bronco

Transmission Tunnel Cover Sheetmetal

Part #1963
$90.00 $81.00
Crossmember Support, Factory, Used

USED Crossmember Support, Factory

Part #6080
$28.00 $25.20

The 66-77 Bronco Automatic Transmissions collection at TOMS OFFROAD offers a range of high-quality, reliable transmission options specifically designed for early Ford Broncos. Whether you’re looking to upgrade or replace your existing transmission, this collection provides the perfect solutions to enhance your Bronco’s performance and drivability.

Collection Highlights

  • Direct Fit Solutions: Our automatic transmissions are engineered to fit seamlessly into 66-77 Broncos, ensuring a hassle-free installation process.
  • Performance Enhancements: Choose from a variety of transmission models that offer improved performance, durability, and smoother shifting for both on-road and off-road driving.
  • Comprehensive Kits: Many of our transmission packages include everything you need for installation, from the transmission itself to all necessary hardware and accessories.

TOMS Is Quality Parts

TOMS OFFROAD is committed to delivering parts that meet the highest standards of quality. Our automatic transmissions are built with precision and durability in mind, ensuring that your Bronco not only maintains its classic charm but also benefits from modern performance improvements.

Usage Tips and Recommendations

  • For the best results, ensure that your Bronco’s engine and drivetrain are in good condition before installing a new transmission.
  • Regular maintenance, such as checking fluid levels and replacing filters, will help extend the life of your transmission.
  • Pair your transmission upgrade with a compatible torque converter and shift kit for optimal performance.

Why Choose TOMS OFFROAD Transmissions

Choosing TOMS OFFROAD means trusting a brand with decades of experience in the Bronco community. Our automatic transmissions are backed by our commitment to quality and customer satisfaction, ensuring you receive a product that enhances your driving experience and maintains the integrity of your classic Bronco.

Frequently Asked Questions

Are these transmissions compatible with all 66-77 Bronco models?

Yes, our automatic transmissions are designed to fit all models within the 66-77 Bronco range.

Do these transmission kits include all necessary components for installation?

Yes, many of our transmission kits come complete with everything needed for installation, including hardware and accessories.

What are the benefits of upgrading to a modern automatic transmission?

Upgrading to a modern automatic transmission can provide smoother shifting, better fuel efficiency, and improved overall performance.

Can I install the transmission myself, or should I seek professional help?

While installation can be done by those with mechanical experience, we recommend professional installation to ensure optimal performance and longevity.

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