Yeah, Rubicon makes some but they are $$$'s.
I needed some new coil mounts so I made my own out of a few different sizes of DOM, a hole saw, and a welder.
The bottom piece was like 5" OD and 1/4 wall. Then I had a piece of solid 5.5" tube sliced into a 1/4 slice and welded that on top of the big tube. Lastly I used an oddball size (something like 3 1/8) to put on top that would hold the coil pad just as the stock one. Note the stock coil mount on the right and my new ones on the left. Material is probably a bit thick and heavy but my rig is already a heavy biotch
Oh yeah...metal supermart did the cuts for like nothin'. All the material + cuts was less than 20 bucks.
I got a 3" hole saw from home depot and chucked it in my press...low speed...lots 'o oil and they came out perfect.
Now I gots 5 degrees of caster and a perfect pinion angle.....oooohhhh...ahhhhhh