[A/S] Reese Dual Cam / trailer frame thickness

["camfam04347" <jmcameron@xxxxxxxxxxxx>]

Hi all!

Thanks for all your very helpful replies about my brake controller 
questions for the rental truck. I'm going to get the Prodigy due to 
it's ease of installation. I also have decided to get the Reese dual 
cam hitch. My question is that it comes in two sizes, one for 4" and 
5" trailer frame thickness, and one for 6"  trailer frame thickness.

http://www.reesehitch.com/sway_control.html

The trailer I will be using it with is a '66 26 foot Overlander. The 
seller may not be going up to where the trailer is located before I 
go up, so I can't ask him to measure it. 

Does anyone know what the frame thickness is on a '66 Overlander?

Thanks very much!!!!

Jim Cameron
Maine