Distance Between Mounting Flanges on Draw-Tite Class IV Hitch Part Number 37130

Helpful Expert Reply:

The distance inside the two mounting flanges that the larger plates attach to on the Draw-Tite # 37130 are 35-1/2" apart.

flange to flange measurement
(click to enlarge)

Helpful Expert Reply:

For that, I recommend using the Curt Adjustable Trailer Hitch Receiver - 18"-51" Wide - 2" Drop - Class III - 2" # C13701, which will fit on RVs and trailers with box frame, c-channel frame or I-beam frames between 18" and 51" apart. This will work just fine for your Holiday Rambler and the 2" drop makes it easier to use hitch mounted accessories.

flange to flange measurement
(click to enlarge)