Shackle Reversal/Frame Stretch

I wanted to do a Shackle Reversal and Frame Extension at the same time. I needed to move the front axle forward to make room for 42" Super Swampers. A Shackle Reversal without stretching the frame would decrease my rear fender well clearance. This also would give me an opportunity to move my springs out 3/8 of an inch on each side to match the perches on my GM Dana 60.

First I made a few measurements to determine how far I needed to move the axle forward. I came up with 6 inches. This worked out great for the rear shackle mount. I could weld it right to the frame with out having to build up something to support due to frame curvature. I took height measurements of each spring eye and adjusted the dimensions of my front spring hanger to match. By doing this I kept the correct caster angle on the front axle.

These front spring hangers are made out of 1/4 inch plate.

Frame extension and front spring hanger are clamped into place to fit the bumper and make adjustments for spring location

This top piece of the frame extension was welded on and placed so I could pick up the original winch mounts for added strength. I wanted the winch mount on the bumper to be tied to the original part of the frame.

This is a picture of how the frame extension looked prior to welding everything together.

Front spring mount welded in place.

Rear Shackle (from a cj7 rear spring) mount welded in place. It is 6 inches forward of the original spring mount on a horizontal plane.

Notice the shock Angle. It hasn't been a problem yet.

Finished Product

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