Recently aquired a 1973 Jeep J4000 (4500). AMC 360, th400, quadratrac. Dana 44's front and rear. I am completely new to the full size Jeep scene and I can't find any axle swap info on these early 70's jeeps. The dana 44 front has a spring C to C of 39" (!) drum brakes and is of the closed knuckle variety. Anyone have experience with a Chevy axle swap for these trucks? Is it even worth doing? Are these axles worth upgrading? Just plan on mild trail riding, nothing hardcore. Any worth while upgrades in general for the truck itself? The only lift I could find was a 4" hell creek all spring lift.