I have a 2008 WW SLC and its a 3705 model but I measured today because another friend with a 3905 measured his at 42 feet and mine measured out at 40 feet. Im not the original owner so i thought it was a 38 foot unit. Any ideas?

my 21 footer measured out to 22.

I have a FSW3200 and the box is 36 ft with a 4ft tongue. Thats pretty long for a bumper pull. I think thats why weekend warrior went out of business, they used the wrong tape measure and scale for there trailers.