Front brackets first, they fit under the transfer case crossmember & bolt into the frame.

you need to drill 4x 7/16th (11mm ) new holes in the frame rail, so each bracket is held in with 8 bolts in total.

they come with a threaded bar to bolt into, getting them to line up in the rail can be tricky

I used some wire threaded through the holes and through the bar before inserting the bar into the frame rail, when the bar is in the rail it then lines up on one of the holes.

then spray the rail with frame sealer / waxoil

and bolt the bracket up, getting coated in waxoil in the process 🙄

Right, 4 hours of rolling around under the Jeep & I have them installed. No real tips, it is a straight forward unbolt the arms & bolt the new ones in, a bit of a pain on your own when setting the axle angle to install the Y arm as it is heavy, other than that, straight forward.. Oh 1 PITA is the bar pins that came with my shocks are too long, & I don’t want to feck up my old shocks as they are in good nick & someone may want a complete WJ BB soon.

shiney

frame end joint

Y arm installed

plain arm installed

Also installed the IRO 4″ front springs and the Doesh Tec shocks, which are much beefier than the Rough Country ones coming out, the the piston rod looks twice the diameter.