Or you could just get some 2" tubing and whip up a pair of
your own making that will last you a lifetime:

http://www.pbase.com/dennygraham/image/159121773/large
http://www.pbase.com/dennygraham/image/159121774/large

Made these back in the early 70's and have had trucks and
tractors up on them without hearing a grunt.

DG


Denny G
Sandwich, IL