Rear Window Pass Through Boot

Check this thread where this was discussed before. We also use the boot from TCW. Works great.

https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/30011841/gotomsg/30011852.cfm#30011852

Northstar and my dealer, Truck Camper Warehouse, used to sell a big vinyl covered foam boot. Mine still works after 10 years.

I went via several options and learned the hard way:
-Styrofoam blocks move and eventually fly away
-inflatable boots don't adjust for taper and fly away
So finally I went to Walmart and bought swimming noodles, while cutting foam block and double-sided them to truck window to compensate for 3" tilt.
Than I cut the noodle to form square around the window and put a rope inside to hold the square together.
Worked for last 6000 miles of Alaska vacations.

BobsYourUncle wrote:
Could you get a big old inner tube, carefully position it and inflate it?

Years ago this is what I did to get some A/C back to my dogs in a truck shell. The space was very narrow so I used a bicycle inner tube. I just carried it behind the seat with a very small bike hand pump and put it in when I needed it.

Cracking a window in the camper shell seemed to help draw the cold air back there. It was waterproof and did not wear the paint off of the truck or shell.

On my Ford, I just cut and glued some ordinary PU cushion foam. Made a rectangle surrounding the opening, had to make it a little wedge shaped to match the tilt of the cab back. Stick it in there as I am backing up, it is compressed between camper and cab. I intended to cover it with something but never did, it has held up for several years. Really serious cross wind gusts will begin to move it around at the top, so I stuck a couple of small aluminum angles on the overhang with VHB tape to trap it, solved that problem.

Could you get a big old inner tube, carefully position it and inflate it?