What Is Used To Mate the Cab to the Sleeper???
 

I am looking at putting a sleeper on my truck and mating it to the cab so I can crawl through. What material do trucks used that keep it sealed in the rain and snow??? I will need this for my truck.

just a big rubber seal

Where can I get that at??

probly the same place you buy a sleeper, or a peterbilt dealer should sell that seal

Go talk to your local tin can haulers...they seem to have pretty good luck with duct tape.

Try to research online... google is the best... you will find many of the websites or dealers seller this stuff at a cheap side.. try your luck buddy!!!

RV dealerships have rolls of that rubber boot material also trc1016 .