Re: forward vs setback
Depending on the size/weight of the crane you are mounting, you may have to look at an 18,000 or 20,000 lb front axle a guy i work with has a knuckle boom mounted behind his bunk and his empty weught is just over 34,000 lbs, bobtail. I believe his front axle weight is almost 18,000. This is in a freightliner with a 48" integtal sleeper with a set back axle and a C13. I agree that you should stick with the Cat, or a Cummins, for the reasons bigjoe gave.