I am changing the radiator support hardware and noticed that I have two different size holes in the frame, which I am sure neither is correct due to rust. Does anyone know the correct size for these holes? I need to weld the holes smaller. I know it does not matter, but its a 1977 f100, 302 automatic.


Thanks

 

Why not just order a set of "frame savers" from the bronco graveyard and weld them in. They're more than just a large washer. First difference is they're much thicker then a washer. Plus they have the correct size and shaped hole cut into them already. They other thing that makes using them so nice is that they are the size that is usually damaged by the rot. Just a thought. Oh and I bought and installed them into my 78 f150 when I put in the new body mounts several years back. I haven't had a issue since. Not even when I cleared 3 feet under the truck.

 

Thanks for the great idea. I did not know they existed.

 

Do they get welded on top or bottom of the frame? Or do they go in flush?

 

Have you read JBG's product description? It states their intended installation method.

 

No. I have not looked it up on line yet. I will. Just getting going on this. Thanks

 

I welded mine on the bottom,I did not want to remove existing frame steel,your rubber grommet covers it anyway ,they are stout. I used weld primer before welding on my bare steel for rust prevention



Item Number: 23069A Bronco Graveyard

Unit Price: $7.00



1978-79 Ford Bronco
1973-79 Ford F100, F150, F250, F350
Core Support


Fix rusted out body mount holes with this product. When you are replacing body mount bushings and you discover the holes on your body mount brackets are rusted or thin, this product is for you. Just cut away bad metal and weld on the new frame saver.
2-3/4" OD
1-7/16" ID

 

Thanks for the advice. I will weld from the bottom. Make sense.