dont be scared to let it rev. i had a 99 with a 360 i used to pull my jeep on. before i regeared to 4.10s i couldnt hold OD unless it was flat ground. its better to run it a 3k rpms than be lugging it in OD
'90 YJ, ford 8.8, SOA, lincoln front, aussie rear, 4.88s, swampers.