It’s a Viair 2 gallon tank. A 3 gallon would easily fit but I had this from my JK. I made the mount/skid from 1/4” plate and you can barely see some 1/8” angle that goes from the rear up to a mount above.
No issues. Torqued to 18 or 20, can’t remember. Re-torqued them once and haven’t touched them for 20,000 miles. Been through Rubicon, two weeks in Moab, AZ, Sand Hollow. Aired down many times to 3 psi in the snow, 10 in the sand with lots of whoops, donut spinning, etc. I’m not easy on them.
I anti-seized my threads, but the bolt heads have never rusted in a year and a half. I live in Oregon where it rains all the time, I play in the Sand dune‘s, the snow and the rocks. My beadlock rings are scratched all to hell.
I used Omix-ada bumper end caps for the old-man style tube bumpers...