The Stovebolt Site Forums The Shop Area General Truck Talk Bed mounting blocks 39-40

OK, I have a 39 GMC 1/2 ton which uses a 40 bed. The original bed had a metal floor but now I will be using a wood floor bed.

Any body know the thickness of the mounting blocks? Need thickness for the fronts, middles and rears. THANKS

ttt

Nobody knows the stock height of the blocks for a 40 chev?

stea, Put this request in the forum for "making a stovebolt bed" and I am sure someone will get the answer. If they are the same as a 37 I could measure mine....OR if you have the packet from Chevy Assistance look at the measurements for he cab/bed alignement and you may be able to figure it out?

I don't know myself, but second the suggestion that you post this into the 'making a bed' forum.

Also, if the factory assembly manual is available you could get the data from that. Possibly the Restoration Pack from GM would tell you. There is an online forum that has lots of manuals in PDF format, which might be helpful too.

http://chevy.tocmp.com/index.htm

Here's a Master Part's catelog from '29-'54, which might have what you need:

http://chevy.tocmp.com/1929_54chevyparts/index.htm

Here's a link to a page of resources that might put you in the right direction.

http://chevy.tocmp.com/chevyresources.htm

Found you the restoration pack on-line too.


http://chevy.tocmp.com/chevyresto/39index.htm

Go to "Tech Tips" here on the Stovebolt (very top of the page), and look for "1936-'46 bed mounting blocks", that may help you.

I measured the blocks under my '40 GMC bed. There are 3 on each side. The front and rear blocks are 1-7/8" and the middle blocks are 1.5".

Steve

Should have looked in the tech tips section first, thanks for the reminder Barry.

Looks like the fronts are 2" the middles are 2" and the rears are 4" Looks like I will have to make adjustments on the rears though. I want a hidden bolt setup.

ndnchf- Do you have the metal floor or a wood floor?

Mine is a long, wood bed. The crossmembers at front and rear are wood. The middle crossmember is steel and a little taller than the wooden ones. Thats why the middle block is a little smaller. You can see photos in my webshots page.