Just looking around to buy a GQ and want to find out about the TB42, I'v owned in the past a GQ with the TD42 with 6" lift and 35's and 4.11 diffs. I loved the way it would idle around and over rocks at under 1000rpm. How does the TB42 compare in slow off roading where engine speed is not an option? Also thinking of an auto? How does the RB compare? and is there an auto for the RB in a GQ. Any help on this would be apriciated as i'v only been in a few patrols and they have all been TD powered. Thanks.