Hi, the upper diagram in my previous post is from the Coyote International on line catalogue, and that is their information for that 4" vent. If that is the correct part (the two pieces come together as I recall), you can order from Badger Truck Refrigeration as their part number BT2-1029 for about $10 + shipping. Might have changed though. Check Badger's web page and it should come up under that part number......or phone them if it does not come up. I found them very easy to deal with via phone or email. The louver mechanism on the ACE dash vents is very easy to break (as you found out) so order a couple (one spare). Keep the vents closed when not in use...saves catching/damaging them with a knee etc. Hope that helps you out.
__________________
|