are holset turbos good, alot of honda guys run them and still no where near 600 on that particular holset the only holset i've seen make over 600whp is the hx52 from a volvo big rig and it didn't spool until about 6k rpms iving it about 2500 max rpms of power band i do know the hy 35 is a good alternative to a 50 trim as the spool and power are very close between the 2
The D-max trucks with the Allison auto are flat out fast, they are sweet trucks. I'm just not a fan of chevy interiors or the IFS which does eat through bushings and get sloppy. I agree with Mattafact though. A new 1/2 ton has all the balls you need to tow your rig.
1992 6.5TD 2500 4x4 5spd 3.42's reg cab, Farm Truck, mostly stock(if it aint broke dont fix it) 1993 6.5TD 3500 2x4 4L80 3.21's 4door, Play Truck, mods below 1994 6.5TD 2500 4x4 4L80 3.73's reg cab, The Feed Wagon, Max-E-Tork, Flowmaster DP, straight piped, manual GP overide, posi-lock actuator, 3" body lift, flat bed, trip hopper feeder, remote hydraulics, hay spear and bale cam.