So Iv'e got an 04 TJ with popped 4 Cyl and automatic, and a 2005 wrecked rolling chassis with a 4.0 and a 6 Speed manual.
I disassembled the 4.0 with about 140,000 miles on it and the cylinders have original cross hatch hone marks still in with zero wear.
All bearings and crank have zero wear...