Cap/Shell Question - Side Rail Height

Alright, I have a question for everyone with Cap/Camper Shells. The Side rail height is clearly at a different height than the rail between the bed/cab of the truck. I want to know how most camper shells accomodate for this?

The reason I ask, is because I am looking at buying a used one, and the seller has a peice of wood sitting on this front rail to make it the same height as the side rails. Is this normal? Should I be worried I am buying a shell for another truck that is being rigged to fit a tacoma?

Thanks in advance!

 

I had a Ranch cap on my 2008 that just used a large piece of weather striping to seal the front of the box. My 2010 has a Snugtop on it and the front is formed to fit the box with the rails, so I would say they come both ways.

 

^Interesting... thanks man. The guy I am buying it from doesn't seem like the type who would care about something like this, but I don't exactly like having a peice of wood showing, you know? Anyways, I guess i'll have to pick up a large peice of weather stripping to use

 

The foam on the front of mine is thicker than the side foam .