Originally Posted by LakevilleSSEi
I think that most of them are 351'* geared really low.
Umm...probably not. The 5.7(351cid) has always been an option motor, and U-Haul buys the cheapest trucks they can, to keep overhead down.
The ones that were built in the 80'* and early 90'* usually had the 300cid inline six, so they didn't have to gear them low. Those engines had massive amounts of torque down low, in fact you had to drive them like a diesel (shift at or before 4000rpm) to keep them happy.
After that, I think they started using the smaller V8s, like the 5.4.