H16 on an 18 trailer?

I own an 18 and a 16, but only have a trailer for the 18, does any know if a 16 can safely fit on the 18. I figure it will "fit" but does anyone have experience on what changes will need to be made to the trailer?

Thanks

yes, may have to slide the runners in some. My first trailer was for a 18, I just moved the rollers in some, but not much.

Ok that's what I figured. I'm always scared of doing stuff like that without checking because I'm amazed at all the little things I read in these forums that can be damaging or dangerous thst I never would have thought of.