Identifying a hole in my floor
 

Hi All, I was hoping someone on here could help me identify this hole in the floor of my 59. More importantly, can someone help me identify a plug for said hole? https://67-72chevytrucks.com/vboard/...1&d=1712178988

Re: Identifying a hole in my floor
 

Original hydromatic truck?

Re: Identifying a hole in my floor
 

I dont think so...Was the hydromatic just a GMC thing? The LMC catalog shows the same hole, but they also told me they dont sell a filler for it.https://67-72chevytrucks.com/vboard/...1&d=1712207257

Re: Identifying a hole in my floor
 

I think that’s the location of the stomp starter.

Re: Identifying a hole in my floor
 

I am going to go with Foot Starter Hole.

Re: Identifying a hole in my floor
 

Thanks for the feedback, that seems like most best answer.

Re: Identifying a hole in my floor
 

1958:

Attachment 2348157

Re: Identifying a hole in my floor
 

Dang, that one got me last night. Yuppers, for sure the stomp pedal hole, this one covered with a piece of galvanized tin.

Re: Identifying a hole in my floor
 

you could fab your own formed metal patch pretty easily that fits into the hole with a raised perimeter edge thatcould be glued to the floor with urethane sealer, like windshield caulking. thats if you cant find a rubber grommet. otherwise, find a rubber grommet that if slightly larger and simply expand the hole to fit the grommet. or fab a ptach that fits the hole and weld it in.

Re: Identifying a hole in my floor
 

go to a truck tire repair shop ang grab a couple of patches and glue one on from each side if youre not worried about the look.

Re: Identifying a hole in my floor
 

There have been many request for a "grommet" plug for that hole. With many threads with folks looking for one. over many years.
Don't believe they are to be found.
So I would just plan on making a patch/plug/weld/Glue to meet your need.

Re: Identifying a hole in my floor
 

Its nice to hear I'm not the only one who has struggled to find out what it was AND want a plug for it. I found a patch option on amazon.... Im going to give it a try! Guess and Check and Repeat.

Re: Identifying a hole in my floor
 

I thoughtof those plugs, they are used in front floor areas and trunk areas in sedans, but thought they were usually too small for that hole. worth a try though. easy enough to fab up one for your needs too. they are usually glued in.

Re: Identifying a hole in my floor
 

The plug on Amazon looks like the right shape. There are also repros of OE plugs with tabs: https://www.chicagomusclecarparts.com/products/918731

Urethane is a great adhesive and it's good at filling gaps. Once you open the tube it begins to cure and it can only be stored for a short time before the entire tube is cured. I'd look for smaller tubes from one of the big box stores. Even better, they're available in different colors.

Re: Identifying a hole in my floor
 

The shape of the amazon plug was pretty good. I'll end up trimming it just a touch i think. Thanks for all the info and help. I entered the truck (as a long shot) in the small automotive section of our yearly MotoShow and they accepted it. So now im in a scurry to seal up a few of the long outstanding issues. :lol: