I still like my 3 row. It does not leak
Stock crapper is Al.....really?
It may cool better for some, but when mine starts leaking a couple thousand miles from home, on the first day of a week long moab trip, I still call it a piece o crap.
FWIW - my cross-country interstate operating temps ~are~ lower with the new radiator/pump/stat. I've done the drive from PA to CO 4 times in the TJ, and the last 2 were significanly lower with the new setup. No difference in slow speed temps though. Always been 210 according to the gauge when on the trail.