The HP44 center is way better than the rubi TJ lp44.
Bigger ball joints
Bigger knuckles
Locking hubs for gas mileage (minimal)
No stupid D30 unit bearings
Way bigger brakes.
1/2 non tinfoil tubes.
I ran a 1976 F150 44 in my 99 Cherokee.
https://www.naxja.org/forum/showthread.php?t=927699