If your running 32 inch tires or under, I would stay with the stock power unit. You will need the firewall bracket, the booster and master all together.
Folks are always trying to swap in the YJ booster, but forget that the throw of the pushrod is different and the pedal pivot point is moved....IF mix matched, this results in low pedal or soft brakes. If you swap, swap all of it.
1975 CJ-6 304 T15 Dana20 30/44 3.73
1983 CJ-8 258 T5 300 30/44 3.31 Looking for full or half hardtop buy or trade
1986 CJ-7 Laredo 4.6 stroker T5 300 30/44 3.31
1986 TJ-7 Trail Jeep project in the works
2003 Inca Gold TJ Rubicon