2WD to 4WD Conversion Kit for 1965-1979 Ford F-Series Trucks

Why Choose Krawlers Edge and Kincer Chassis?

Krawlers Edge and Kincer Chassis are known for quality parts and years of experience building classic Ford trucks and Broncos.

Kincer built the chassis for Jay Leno’s Bronco shown at SEMA 2019, and the same shop builds the parts in this kit.

What a 2WD to 4WD Conversion Does

Converting a 2WD truck to 4WD gives it better traction and off-road ability, and it can raise the truck’s value to the right buyer.

It’s a popular upgrade for vintage Ford truck owners who want more capability without giving up the classic look. The before and after photo below shows the difference.

Why 1965 to 1979 Ford F-Series Trucks Are Good Candidates

Ford F-Series trucks from 1965 to 1979 are known for their durability and design. Most of the ones still around are 2WD, which makes them good candidates for a 4WD conversion.

There are a few reasons 2WD trucks from these years are so much easier to find.

Market demand

The F-100, F-150, F-250 and F-350 were work trucks. Ford built 2WD versions in much higher numbers because that’s what most buyers needed for everyday hauling and transportation.

Technology of the time

In 1965 Ford introduced Twin I-Beam independent front suspension on 2WD trucks. It gave a more car-like ride while keeping work-truck strength, and it was a big selling point.

Cost and complexity

4WD systems are more complex and more expensive to build than 2WD, so the simpler 2WD trucks made more sense for the mass market.

Survival rate

Many 4WD trucks from this era ended up on farms and were worked hard. Fewer survived in good shape, while 2WD trucks were more likely to live easier lives.

Conversion Kit Options and Pricing

Kit Three’s assembled front axle includes:

• 9-44 front axle housing with D44 inner Cs
• Radius arm mounts, extended radius arms and track bar
• Custom inner axle shafts and outer stub shafts
• Strange 31-spline differential
• D44 hubs, spindles, bearings, knuckles and ball joints
• Mile Marker lockouts and brake lines
• OEM-style brake package with 12 inch rotors

Prices are as listed by Kincer Chassis in September 2026. Call for current pricing and lead times.

DIY vs. Professional Installation

The kits come with instructions, but how hard the install is depends on the kit.

Kit One can be a DIY project if you have the tools and experience. Kit Three is a bigger job, and most owners have a professional install it.

Call or email us to see if this project is right for you, or buy the kit and send it to your mechanic.

Is a 4WD Conversion Worth It?

With the added capability and the potential bump in resale value, most owners see it as a good investment. Here are ten reasons to convert your old Ford truck to 4WD:

1. Off-road capability. Better traction and handling in mud, sand and rocks.
2. Traction in bad weather. More grip and control on snow, ice and wet roads.
3. Resale value. 4WD trucks are often more sought after, which can raise the truck’s value.
4. Versatility. One truck for daily driving, work and off-roading.
5. Towing. Better towing on uneven ground and in tough conditions.
6. Classic look, modern use. Keep the old Ford styling and add real capability.
7. Satisfaction. Plenty of owners enjoy the build itself, and almost everyone wants their truck to be 4WD.
8. Control in hard conditions. More stability when the road gets rough.
9. Rarity. A converted 4WD classic Ford stands out at shows and on the road.
10. More places to go. Reach trails, campsites and fishing spots a 2WD truck can’t.

Krawlers Edge and Kincer Chassis give you a way to turn a 2WD classic Ford into a capable 4WD truck, with kit options for different needs and budgets.

2WD to 4WD Conversion FAQs