We completed an LS swap on a Jeep TJ here are the details of that build:

2000 Jeep Wrangler TJ. Engine was a 4.0L with 5 speed and is now a Gen3 5.3L LS with a 4L60E automatic transmission. 4" Ironrock Offroad Rock Link Kit with Fox Reservoir shocks. 2.5" stainless steel exhaust with CARB compliant catalytic converters and a Magnaflow muffler. Fully Emission compliant.