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-   -   Gas pedal help ! (https://67-72chevytrucks.com/vboard/showthread.php?t=760214)

67shortstepside 03-25-2018 06:20 PM

Gas pedal help !
 
Hey guy this is my first truck build . Does anyone have pics of how the gas pedal mounts to the floor of the cab ? Thanks

ga-stepside 03-25-2018 06:45 PM

Re: Gas pedal help !
 
Quote:

Originally Posted by 67shortstepside (Post 8221519)
Hey guy this is my first truck build . Does anyone have pics of how the gas pedal mounts to the floor of the cab ? Thanks

There are a couple studs with round tops that bolt to the floor and the pedal snaps onto those. Like this:

http://my1970z28.com/COPO/images/DSC00547.JPG

67shortstepside 03-25-2018 06:58 PM

Re: Gas pedal help !
 
Do you have fire wall pics ?

dec010974 03-25-2018 07:06 PM

Re: Gas pedal help !
 
i switched to a regular, later, 1971 c10 and up pedal.

ga-stepside 03-25-2018 07:25 PM

Re: Gas pedal help !
 
Quote:

Originally Posted by 67shortstepside (Post 8221555)
Do you have fire wall pics ?

No sorry, I actually found that pict by searching.

Damien8086 03-25-2018 07:33 PM

Re: Gas pedal help !
 
I cannot for the life of me remove the pedal studs from the floor. The left side stud ball has broken off and the nut part of both studs doesn't really look like a nut anymore.

Is there some trick to removing these things so that I can replace them?

ga-stepside 03-25-2018 08:03 PM

Re: Gas pedal help !
 
Quote:

Originally Posted by Damien8086 (Post 8221587)
I cannot for the life of me remove the pedal studs from the floor. The left side stud ball has broken off and the nut part of both studs doesn't really look like a nut anymore.

Is there some trick to removing these things so that I can replace them?

I had trouble getting mine out too. There is probably a ton of rust on the threads. Spray the hell out of them with penetrating oil and let it sit for a day. Put some vice grips on them if you can, and try slowly turning them. I've found alternating from loosening a little bit back tightening a little and so forth helps until they free up. Failing that hit them with some heat but clean off that oil, you don't want fire! Or cut out the old plate which I think is welded to the floor, get or make a new plate, weld or bolt that to the floor and get new studs.

'70_402 03-25-2018 10:04 PM

Re: Gas pedal help !
 
If you switched from a factory 67 throttle rod assembly to a 71/72 cable assembly, you'll need this adapter.

http://67-72chevytrucks.com/vboard/s...d.php?t=746099

Damien8086 03-27-2018 12:09 PM

Re: Gas pedal help !
 
The threads on the studs don't even appear to be visible in order to grease them.

I did saturate the studs hoping some might make it to the threads a few times and let them sit overnight and they're still not budging with vice grips.

I am thinking I might try and cut a deep enough slice in the center of one and see if I can get a flat-head screwdriver in there, but I am not feeling optimistic that it'll turn.

lolife99 03-27-2018 12:13 PM

Re: Gas pedal help !
 
You can also tack weld a nut to the stud, by welding inside the nut.
Some times the heat from the welding will also loosen the rusted threads.

ga-stepside 03-27-2018 12:56 PM

Re: Gas pedal help !
 
Quote:

Originally Posted by lolife99 (Post 8223244)
You can also tack weld a nut to the stud, by welding inside the nut.
Some times the heat from the welding will also loosen the rusted threads.

Good idea. But like me he may not have access to a welder

Damien8086 03-27-2018 01:01 PM

Re: Gas pedal help !
 
Quote:

Originally Posted by ga-stepside (Post 8223302)
Good idea. But like me he may not have access to a welder

Correct, no access to a welder nor any experience with welding

demian5 03-27-2018 01:14 PM

Re: Gas pedal help !
 
Grind them off if you don't need them.

If he doesn't have access to a welder or a grinder, he will have to pony up or borrow something. If you just break them off, the carpet will cover the remnants.

Damien8086 03-27-2018 03:54 PM

Re: Gas pedal help !
 
Quote:

Originally Posted by demian5 (Post 8223312)
Grind them off if you don't need them.

If he doesn't have access to a welder or a grinder, he will have to pony up or borrow something. If you just break them off, the carpet will cover the remnants.

I do need them, just trying to replace them with new ones because they're in pretty bad shape, but can't get them off

STPETEBLUE 06-10-2020 07:36 PM

Re: Gas pedal help !
 
Quote:

Originally Posted by Damien8086 (Post 8223437)
I do need them, just trying to replace them with new ones because they're in pretty bad shape, but can't get them off

Has anyone had any luck? Mine are little tiny points. I'm looking for a solution, too.

LockDoc 06-10-2020 08:40 PM

Re: Gas pedal help !
 
Quote:

Originally Posted by Damien8086 (Post 8223437)
I do need them, just trying to replace them with new ones because they're in pretty bad shape, but can't get them off

Quote:

Originally Posted by STPETEBLUE (Post 8755379)
Has anyone had any luck? Mine are little tiny points. I'm looking for a solution, too.


If you can get any kind of wrench or grips on them try heating them up as hot as you can with a propane torch and let them cool back down a little, then hit them with some penetrating oil. Do this two or three times then try removing them. The heating and cooling will break the rust bond in the threads. If that doesn't work or you can't get a hold of them to turn them you will just have to cut or grind them off flush, drill and tap new holes and screw the new studs in. I don't know if the new studs are long enough to put nuts on the bottom side or not.....

LockDoc

Smitty 06-10-2020 09:53 PM

Re: Gas pedal help !
 
If you have to drill them, try to get as close to center as possible. Try starting small and step drill up to the tap size bit. The tap may clean the old material out. And not mess up the original threads. Or once you get a hole through, it may relieve some of the pressure from the threads. Allowing you to remove it with an easy out. Good luck.

STPETEBLUE 06-10-2020 10:21 PM

Re: Gas pedal help !
 
Quote:

Originally Posted by LockDoc (Post 8755415)
If you can get any kind of wrench or grips on them try heating them up as hot as you can with a propane torch and let them cool back down a little, then hit them with some penetrating oil. Do this two or three times then try removing them. The heating and cooling will break the rust bond in the threads. If that doesn't work or you can't get a hold of them to turn them you will just have to cut or grind them off flush, drill and tap new holes and screw the new studs in. I don't know if the new studs are long enough to put nuts on the bottom side or not.....

LockDoc

Quote:

Originally Posted by Smitty (Post 8755460)
If you have to drill them, try to get as close to center as possible. Try starting small and step drill up to the tap size bit. The tap may clean the old material out. And not mess up the original threads. Or once you get a hole through, it may relieve some of the pressure from the threads. Allowing you to remove it with an easy out. Good luck.

Thanks. All I wanted to do was replace the ball studs and put a gas pedal on it. Now it looks like I'll be pulling up the mat, insulator and soundproofing to do this.
It would really be nice if I could just mount the '71-'72 pedal only on the linkage.

palallin 06-10-2020 10:30 PM

Re: Gas pedal help !
 
When you drill, use left-handed bits and a reversible drill motor. The bits might catch and turn out the remains of the studs.


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