radiator frame Gasket?
 

Is there a gasket between the radiator shroud frame and the chassis frame on my 55.1 GMC-100?

After checking through a few books of mine I am not finding one and don't want to screw up any alignment issues with my hood / fenders?

Re: radiator frame Gasket?
 

Classic parts shows a kit:
(1955-59) Radiator Support Mounting Kit
Its just bolts and flat rubber washers. You could probably get the parts at a local hardware store and make your own.

Re: radiator frame Gasket?
 

Thank you nrdone!

I found what I needed on Ebay, and yes there are 2 pads required on a 47-55.1
between the radiator frame and the chassis frame.

Re: radiator frame Gasket?
 

The last time I had the front end off my 48 I think I used a section cut out of a two ply tire sidewall to make the rubber pads.

Re: radiator frame Gasket?
 

when I did mine I got rubber washers and bolts from Ace hardware. I think I spent less than $10.00. I also used nylock nuts to adjust in some free play

Re: radiator frame Gasket?
 

47/early 49 have a U bolt in the middle and springs and a plate on the bottom of the springs.

Re: radiator frame Gasket?
 

They are the same square rubber pads that are used on the bed to frame mounts.
Some manuals have different thickness' to get the alignment of body panels to line up. Most I've read just add fender washers.

Re: radiator frame Gasket?
 

OK, I got to ask the question...... I frequently see the typical use of the rubber pads with the coil springs & U-bolt configuration all the time. I am guessing your installing rubber pad(s) between the radiator core support & truck frame to insulate vibrations between the two components. What is the function of the coil springs & U-bolt?
Once you install all of the surrounding sheet metal inter-panels on the core support the radiator is locked into position & the springs nonfunctional.

Re: radiator frame Gasket?
 

The U bolt was used on 47/48 trucks that had the center mount rear cab mount. I'm thinking that the idea was to be able to flex more without breaking anything when going over rough ground. That is something that we don't get real excited over now but back in 1947 they drove these trucks off across the field or pasture or up in the woods without a second thought.