Really Big Rigs

standard MI log truck, which would pull the above pcitured 5 axle pup trailer


A 8 axle flowboy for hauling asphault


The tripple ten is the gravel train setup that is still posted up above, 4 axle lead, 5 axle pup.

a supertrain looks like this.. quad axle lead, quad axle pup..

 

When I was really young my dad had a bunch of double framed western stars with 4.10's with two speed rear ends to reduce it to around 5.60's. They all had 425 mech cats with straight pipes and air starters. Always hauled brick and always heavy

 

Sorry didn't know we were just talking about michigan trucks. These truck just ran all over Ontario Canada. The two speed unit is part of the front rear diff, its air operated. You can switch from low to high while going down the highway but only switch from high to low when completely stopped. So the whole idea of them is really startability. You can have 5.60's or whatever the ratio is to start off and have 4.10's to cruise down the highway at lower engine speed. I believe the way it works with the ratio's is it all matters what the high gear is so if there way like 3.70's in there the low side would be like 4.56's

 

you could.. but you would be down one axle.. and most single screw tractors aren't tough enough for pulling trains..

That setup is in a dealers lot, the tractor its hooked to is a yard truck.

 

A B-train is seven axles (including the tractor) and a Super-B is eight axles. The extra axle is at the rear of the front trailer, making it a tridem. Leastways, this is the definition used in western Canada.