3/8" aluminum. I cut the cross-member and shaved another 3/8". I’ll also throw in the 1" spacers. I believe this skid will fit a TJ with a 1" Body Lift and the 231 w/o the spacers. I needed them with my 241.
2.5" +/- ground clearance gain w/ 1" spacers
3.5" +/- gain without spacers.
$400
I can email or text pictures. Just PM me.