We liked Fabworx's solid axle swap kit because it uses 6-inch-longer leaf springs (than standard '73-to-'87 Chevy leaves), is completely bolt-on, and sells for just $499 for the complete hanger kit.

We headed to Attitude Performance where Matt Dinelli bolted on a Solid Axle Industries SpynTec locking Hub Conversion Kit on a Jeep JK Wrangler. The kit creates lockout hubs great for four ...