Join Date: Oct 2012
Location: Grande Prairie area, Alberta, Canada
Mentioned: 0 Post(s)
Quoted: 371 Post(s)
I could easily be off on this but whatever observations of trucks I've looked at and noted the frame thickness, the 5/16 frame had the 40 rears and not to say 3/8 frames and 40's are not mated up but I've got three trucks here of various vintages with 44/46 rears and all have 3/8 frames and walking around Ritchie Bros looking at the heavier spec trucks made to actually handle/pull a load, they have 3/8 frames. Again could be off on my thinking as its not as if I've seen line order sheets to see the combinations but I have an inkling that 46 diffs are going to come with a 3/8 frame simply because the frame and diff size is there for a reason. I have seen a friends truck that has the 5/16 frame and how that particular air suspension sits under the frame, its rolled the lower rail of the frame some from the stress, the frame just couldn't handle what a farm situation and our lovely roads can dish out.
Gear ratio wise, I see a lot of 3.91 spec'ed trucks in later years and comments about newer engines being able to run slower, its about getting better fuel mileage for sure vs what had been and probably still is also the popular 4.10 spec for Super B use. Does this truck have the 11R-24.5 then all the way around and also on the steer or do they have slightly larger steer tires.
Can't really comment on the wheel base with the set back and the sleeper size and what that would look like if lets say you wanted to put a headache rack on for hanging chains and boomers ( for running a flat deck ), just something to think about and measure for and know that this unit can be rigged up like that and still give you the room you need for turning. I am only guessing that due to the set back axle you probably wouldn't have to slide the plate very far ahead of center to get max weight on the steer axle.
To me it sounds like a good unit on paper, then again I don't custom haul and am not so worried about packing a bit extra weight penalty that gives me a tougher truck vs a unit that is light as a feather and asking possibly too much of it.