Center of Gravity

burningman wrote:

Kayteg1 wrote:

From what I observe, most trucks have rear axle 1/2 length of the bed, so 60" will put COG full foot behind rear axle.
I don't call it reasonable.
That is why so many members drive 450/4500 or even heavier class truck.
IMHO camper manufacturers don't have much choices here, as camper has forced floor plans and with customers seeking 3 slides the sucker has to be rear heavy, but we discuss that somewhere, that 30 years ago Ford made "camper special" truck with axle moved to the rear.
the F250 could carry heavier camper than standard F350 at the time.
That is what COG does.

That’s not correct, pickup rear axles are not centered they’re to the rear of center.
8’ bed pickups have a cab-to-axle measurement roughly 60”.
That ‘73-‘79 Ford Super Camper Special you mentioned wasn’t an F250, it was an F350.

The 60" cab to axle is only on cab/chassis , the pickup version is 56". I believe the ford super camper and the early 70's chevy Longmont put an elongated pickup bed on a cab/chassis giving them 60" cab to axle . Dodge offered a 9' bed for a while but I don't know the wheel base . Even with that extension it doesn't help much because most TC' s drop down after the rear truck bed so the overhang from the axle to rear of camper remains the same . Unless TC manufactures change their design it is hard to reap the benefit of extra 4" .