Well, I was trying to get my interior back into shape, earlier this summer my left vent kept coming out of the dash. Travelling up hill --> vent in the lap. I ordered one, and I guess it came out of a blue interior instead of black, or it aged differently.I put it in anyway to see its fitment, and it sat in the pins very loose, there wasn't anything to keep it from sliding around. I decided to pull the other (workingish, no resistance, but it wasn't loose) and broke that one, No idea what broke, but I cannot get my vents to stay in. Old plastic for ya. Anyone know what 'keeps' them? Thanks

 

Pictures would help

 

Are they being installed into the ducting? Or just sitting in the dash. I'm an older truck guy and the first gen vents fit into the dash as well as the duct from the blower. Tony

 

Okay, not my pic but here is an example of a 2nd gen runner dash




So so it turns out there are these little keepers:

The other side is missing one
:

 

I have not been into the dash of your your truck in a long time, but I think it is just a flat metal tab if I recall correctly.

 

Oh I remember these now, I didn't do the center vents but expect it's similar to the outer ones. It's a little bushing the spring pins in the vent ride in, they're on your floor or inside the duct or disentigrated to those little bits of plastic shown in the last photo. It is a barn house shaped piece of plastic with square nubs on the outside and holes on the inside for the vent spring pin..

If you can't find them a double or triple layer of copper ground strap bent to a U shape should work.
​

 

If I wasn't in 'restore' mindset, I'd have done that. I found a set of two used vents with all of the pieces for $30 on Fleabay. I have three vents, one gray, two black, if anyone wants them.