Hi
I have a 91 cab on my 85 now and there is some spongy stuff in the cab corners that looks factory.
What is it?
There are no caps in the floor under them
And they are holding misfire.
Ty
Dg

 

It was Ford's attempt at keeping the cab corners from filling with garbage,dirt ect to keep from rusting from the inside out. It is some kind of closed cell foam that should not hold water but in my 89 truck it did. So I cleaned out that foam and used bed liner paint to seal it.

 

Hey
Thanks
What did you use to plug the factory hole under them?
Ty
Dg

 

Personally, I would use some type of removable plug, just in case you needed to drain something out in the future.

 

Ok
Ty
Dg

 

I left those open till I got the cowl leak fixed. I still never put anything to plug them......as I forgot...... Another punch out for the list.

 

All you need is a factory rubber plugs that are used in the door jam, right below the striker pin

 

Where do you get those plugs? The local places(autozoned,Advance and ect) didn't stock or find them in the "system"(as usual).

 

Ask to look in the HELP! catalog.

 

LMC, NPD, Dennis Carpenter, Jeffs Bronco Graveyard, Junk yard

 

Some sources call them "body plugs", others "drain plugs". Ford used several sizes in these trucks. I had the same issue - looked like someone had dumped a quart of kitchen grease and ear wax in the corners, and it took a lot of cleaning to get it out. Junkyards are a great place to find the plugs. Except for the yards in Danville, Illinois, because I already scarfed up all the plugs from there.

 

Hey
Cool info
Ty dg

 

What size are they?
Rubber freeze plugs?

 

Stand by for a photo ...

 

I make 'em to be 1.25" in diameter. The second photo shows some of the other sizes Ford used, including the pancake-sized versions behind the seat.

They are not easy to find. I just searched eBay for drain plugs and body plugs - plenty of options for a Mustang, etc., but no cigar for the trucks.

I'm also working on a 87 Jeep Wrangler, and someone had the bright idea to produce a set of hard plastic Jeep drain plugs with serrated rings underneath. They snap in the hole and stay put, and they're selling like crazy on eBay. This Wrangler has 13 plugs in the floorplan, all the same size, about 1". I pried out three different versions of old plugs and got the replacement set, 15 for $8.

So one would tend to think, with all the aftermarket goodies and parts available for our trucks, that someone would make a set of plugs for them. I've asked for body plugs and drain plugs in parts stores, and felt like I was ordering lobster. Practically every vehicle on the planet has these, so why are they so hard to come by?