Cushion Between '48 F-1 Cab/Box & Frame

I’m rebuilding a Ford pickup and have the ch***is and drive train pretty well finished up. It's a 48 Ford F-1, 350 small block Chevy and Chevy automatic transmission with a Camarro front clip and rear end.
My body guys just finished painting the cab and we're getting ready for my mechanic to mount cab back on the frame. We have the original "dog bone" rear frame mount arms and will be putting in new bushings, bolts and new front cab mounting pads, bolts, etc.
Is it necessary to put some kind of cushion (perhaps canvas webbing or rubber strips) between the bottom of the cab and the top of the frame? It would seem important to minimize rubbing, squeaks, noise, etc - correct? It would seem the same would apply to mounting the box to the frame once that's done as well.
What experience have others had with the best ways to mount a cab & box or body to a 40's-50's frame to minimize future problems, sound, squeaks, etc.
Your help is much appreciated. Thanks a lot.

 

...pretty sure they used a square rubber pad about 1/4- 3/8 thick on the cab mounts, probly the same on the bed-to-frame mounts.
post some pics of it goin together if you can.

 

The cab doesn't sit on the frame rails. There are three mounts on each side, one at the firewall, one at the "A" pillar and the swing arm at the back of the cab. The bed also has rubber pads on each side at four crossmembers and does not rest on the frame rails. Get a Midwest Early Ford or Macs catalog for the F1, they have parts diagrams that are beneficial for ***embly if you've never installed the cab or bed.

BOutlaw

 

Rusty1, looks like BOutlaw answered your questions about how it goes together. I'd gladly send you pics of it going together but the mechanic who does the work is 90 miles away and I won't be on-site when he puts the cab back on.
I took it off 12 years ago when the project started (long dry spell between then and now) but I remember two mounts, one at front of cab and then the swing arm at the back of the cab that BOutlaw refers to.
BOutlaw, I'm not understanding your reference to a third mount at the "A pillar". What do you mean by the "A pillar". Where or what is that?
Also, it's a long time ago but I was vaguely remembering that there was a small space or gap between the cab and the ch***is frame rail. I was thinking that the running board "edge" slipped between the botton of the cab and the top of the ch***is/frame rail and guess BOutlaw's comments confirm that.
Finally, BOutlaw - how does the third mounting point at the "A pillar" attach? Is it a bolt or what makes up the mounting or connector at that point.
Thanks for the help and explanation. Don't mean to be dense but the third mounting point isn't ringing a bell with me or my memory. But, like I said, the dis***embly was a long long time ago.
Thanks again.

 

..the "A" mount is inside the truck on the floor near the front door pillar (called the A piller); here's pic, you can see the carriage bolt right next to the lower hinge bolts.

...on 48's the flange on the running boards did go on top of the framerail, and under the cab, later F-1's didn't have that over-the-frame flange.

 

Thanks Rusty1. After thinking more about my post last night asking about the A-pillar mount and with your explanation and photos, I've got this understood and "dialed in".
Do you or anybody else know if the original '48 F-1's had canvas or cotton "webbing" between the bottom of the cab and the running board flange/top of frame rail to minimize squeaks and/or rubbing?
I see it for sale in lots of old parts houses catalogs or is that intended for older cars and trucks than the '48 F-1 -??
Thanks for the help.

 

...I'd suggest you pick up a few catalogs, most are free; they show all these items you're askin about.