Definitely could be the rev limiter. Theres been many times I've hit it climbing difficult obstacles. Usually that's when I have the thought that V8 power would be nice right now...
Lives in garage:
2004 Red Jeep TJ "X", big tires, suspension, stereo delete, dent in cowl.
1982 Red Jeep Scrambler, small block chevy on 35's.
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." -Benjamin Franklin