I need to transport several loads of topsoil to my Dad's house and had a few questions...

I've heard that a yard of topsoil can weigh anywhere from 1300lbs to 2500lbs. Does anyone disagree with that? Anyone have a better average?

What would happen if I hauled, say, 2000 lbs? It would only be about 7 miles with no major hills, except maybe the highway on/off ramps and my Dad's driveway (steep, but I could put it in 4-low).

We are also thinking about renting a dumping trailer that can hold 6000lbs (tandom axle). So that would need to be added into the equation...

I have an '04 V6 SR5 4x4 WITHOUT the tranny cooler. How much damage would I be likely to do? Should I just do several small loads?

This is all for a wedding, and we really don't want too many tire tracks in the yard. We want to move all this in as few trips that we can.

Thanks!