I have a 71 FJ40 with the vaccum knob 4wd. I have read that you can't go into 2low only 2hi, 4hi, 4low, and neutral. I can ride in 2low it even takes off better than in 2hi or 4hi. Will this hurt anything? No crazy noises from anywhere. I have been shifting like this for about 4 months now. I leave it in low and switch from 2 to 4 only. This 40 is not street legal so I am not worried about speed. thanks for any help.