YJ Leaf Spring Conversion, US Made, 1941-1964, Willys Jeep MB, GPW, CJ2A, CJ3A, CJ3B

A Softer, Smoother Ride for Your Classic Willys Jeep

One of the biggest complaints about original Willys flat-fender Jeeps is their notoriously stiff, rough ride. The factory leaf springs are only 1-3/4” wide and utilize numerous individual leaves, resulting in a suspension that can feel harsh and unforgiving, especially on uneven roads and trails.

Our USA-made, 2-1/2” wide YJ-style leaf springs offer a significant improvement over the original suspension design.

By utilizing wider springs with fewer individual leaves, these springs are designed to provide a much softer, more flexible suspension while maintaining the strength needed for your vintage Willys Jeep.

Benefits of the wider, fewer-leaf design include:

• Softer Ride Quality: A more compliant spring design helps absorb bumps and uneven terrain.
• Improved Suspension Flexibility: Fewer leaves allow the suspension to flex more freely compared with the original multi-leaf spring packs.
• Reduced Harshness: Helps eliminate some of the stiff, jarring ride characteristics associated with factory Willys springs.
• Wider Spring Design: The 2-1/2” width provides a modern YJ-style suspension configuration compared with the original 1-3/4” springs.
• American-Made Construction: Manufactured in the USA specifically for Willys flat-fender suspension conversions.

Want Even More Suspension Flexibility?

For enthusiasts looking for longer front springs, our rear leaf springs can also be installed in the front.

By purchasing four individual rear springs, customers can build a long-spring suspension conversion using rear-length springs at all four corners.

Some builders prefer this configuration because longer springs can provide additional suspension travel and a smoother, more compliant ride when properly installed.

This setup requires relocating the spring hangers to accommodate the longer springs.

Important Conversion Requirements

These are custom suspension conversion springs, not direct bolt-in replacements.

Installation requires relocated spring hangers, YJ-compatible spring hangers and shackles, and custom spring plates designed for 2-1/2” wide leaf springs. Additional suspension modifications and proper fabrication may be necessary.

Available individually as front or rear springs, or as a complete four-spring kit containing two fronts and two rears.

Specifications: 

Front Springs: 4 Leaf, 2 1/2" wide, one eye bushing installed

Rear Springs: 5 Leaf,, 2 1/2" wide, one eye bushing installed

Original Willys eye-to-eye spring lengths for the front and rear. Original Willys center-pin locations for proper axle positioning.

Designed for: 

• 1941-1945 MB
• 1941-1945 GPW
• 1946-1949 Willys Jeep CJ-2A
• 1949-1953 Willys Jeep CJ-3A
• 1953-1964 Willys Jeep CJ-3B