On Fri, 29 May 2009 06:52:51 -0400, "Eisboch"
wrote:

I may be a bit picky, but I've done quite a bit of long range towing over
the past 5 or 6 years. Learned my lesson. For example, the little
Sprinter RV with a 154hp diesel tows up to 5000 lbs effortlessly and it's
handling is virtually unaffected by the weight of the trailer.

Exactly the point - gearing and proper application of horse power.

I could pull 4,000 lbs at antique tractor pulls with my Super A which
had all of 18 horse power - not a full pull by any stretch, but 3/4 of
the way if it was a clay pit and 2/3 of the way with a pack sand pit.