When we ran a full service chassis fab/turn-key hot rod shop a number of years ago, it was always useful to have threaded things around to weld into the frame for some kind of mount, etc.
Here’s a list of all our threaded things for your reference:
PARALLEL REAR FOUR LINK KIT, separate 4-link/coil over brackets
This rear kit has separate brackets for the bars and for the coil-overs. This lets the bars mount outside the frame rails and the coil-overs can mount under or inside the rails for clearance (or vice-versa).
Kit includes: Frame brackets 222502 & 222503, Adjusters 100720R (4), Bars 226231 (4), Axle bracket plates 207615 (4 - for 3" axle tubes; 3-1/4" plates are available), Filler plates for the axle bracket plates 27804 (2 - these might have to be trimmed to length), Coil-over brackets 223501 (2), Energy Suspension urethane bushing halves 213091 (16), Urethane bushing inner tubes 18918 (8 - for 1/2" bolts), Bolts (8), Nuts (8).
222530 kit has all TIG welding done in our shop that we can do. The WS222530 kit does not have any welding done by us. All assembly welding must be done by a qualified welder.