26 Apr 12 07:28, Roger Nelson wrote to Roy Witt:

 RW>> Take that XL out to I-10 and drive it in the truck lane. The
 RW>> roadway sags from the weight of the 18wheelers. But, for some
 RW>> reason the end joints are better supported and don't sag. The
 RW>> longer wheelbase of the XL will hop over those joints. You may not
 RW>> notice it during the drive, but you can see it in every Suburban
 RW>> and XL on the road.

 RN> What I mean to say is the XL and even the Suburban ride like they
 RN> have air suspension.  The Tahoe rides like my '84 Chevy 3/4 tom.  (-:

Suburbans and XLs weigh a lot more than a Tahoe...thus the 'soft' ride of
the burbs.

 RW>> My 72 Cheyene with a 127 inch wheelbase, camper shell and three
 RW>> full tanks of gas did that hop on I-5 on our many trips to San Jose
 RW>> and back to San Diego. Which is why I drive a short bed Silverado
 RW>> today.

 RN> You added a third tank?  I know it's over 400 miles one-way, so did
 RN> you do that because you didn't want to stop?

No. The 72s still had the in-cab 25gal tank...the first owner had the
dealer installed option of two saddle tanks installed. Total capacity was
a  bit over 57 gals...Even if the engine got a low of 10mpg, the mileage
range was 570 miles. With an Alaskan (crank-up collapsible) camper on
back, it got 14mpg when the wind was from the back. During 'Santana' high
winds out of the desert stopping 18wheelers and pickups with campers from
taking I-8 down the side of the mountains to El Centro, the Alaskan camper
was allowed to continue because of its low profile.


                R\%/itt


  ... Only those who will risk going too far can possibly
  ... find out how far one can go ~ TS Eliot


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