specing a new truck

What kind of trailer are you thinking? End, belly or live bottom? How many axles?

I'm in ON, our weight laws are similar.

 

That all depends upon the engine. The Mack E7 engine is only 728 cubic inches (12L)...and it does just fine in a vocational setting. Those same loads you are going to be pulling used to be pulled by trucks with a lot less power and a lot less torque. You've just got to gear it a little lower and it might not run up the hills quite as fast...but it'll do the job.

Rather than buying a new truck, you might consider a rear gear swap from a highway-oriented gear ratio to a more vocational-oriented gear ratio. If the truck you've already got has proven itself to be reliable, that in and of itself is worth its weight in gold. That new truck is going to be an unknown.

 

all local dumps are older iron not much money for new stuff around the peg . get something with low gears or a 18 sp so u can pull 100 k out of soft spots 4 way locks r nice too 3 way cuts it tho

 

Get a glider if you got time. If your in mud get wider steers. Get full lockers. Only enuff fuel for your application. They make a cooler for hydraulics thats saves u hauling 50 gallons of oil. Airride should save you a little weight. Double frame if your gonna be offroad a lot. 3.90 or 4.11 rears work good. Thats my 2 cents

 

I have a tri axle dump in Northern ON with lots of hills, lots of rough roads and tough sites(nickel mines). My truck specs are as followed.

470 Detroit DD13
6 speed Allison auto
4.89 rears
72" rear spread, 264" total WB
20,000 lbs steer axle with 425 tires
22,000 lbs air lift(spif for you guys who are familiar)
46,000 rears.

I max out at 37,180 kgs gross. I can legally haul 23,600 kgs. I know you are planning on hauling north of 100,000 lbs, but my truck performs quite well around here. Several other guys have them spec'd similar to mine an have no complaints.

Hauling on the Hwy with my tranny and gearing, I'm at 1575 rpm @ 105 km/h. If I'm hauling loaded one way MT back haul on most hwy runs I can squeeze 800-900 km out of my 454 L tank no problem.

Hope it gives you somewhat of an idea.

 

Could be wrong but IMHO, even a W900B won't come close to matching one of the setback axle models in a turning radius. Referring to Kenworths, and the way the steering components are designed / mounted, it's my understanding that it's no contest between a same wb W900B and T model; once again, could be wrong. The Ws just don't turn good- they weren't designed for that. Shorter turning radius may even be a reason for the birth of the setback axle trucks. After owning three W900Ls and one year into a T800, don't know if I would want to get back into a "nose" and do the same business I presently do, although they are a better looking truck!

Got the popcorn on; let the debate begin!