Exactly. The documentation for my year shows the S135 as the 13,500# axle.
j-d wrote:
I forget which RV builder's site I was looking at. Probably Newmar or Tiffin, but their spec pages for Class A Gassers on Ford Chassis indicated a very wide range of GVWR numbers along with at least two wheel diameters. This would mean different specs within the F53 line.
I pulled up the Ford page for 2017 F53 and it showed Dana 80/12,000#, S110/13,500#, S130/15,000# and 17060S/17,500# axle models.
Seems your documentation doesn't match your actual axle and specs.
