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Mod | | | Forums66 Topics128,024 Posts1,055,395 Members48,422 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Aug 2005 Posts: 1,186 Shop Shark | | Shop Shark Joined: Aug 2005 Posts: 1,186 | Trying to figure out how thick the radiator support pad is supposed to be. My '54 Chevrolet 1 ton takes the single center mount pad with two holes. I have some rubber conveyor belt in the shop but not sure how thick it needs to be. Anybody know off the top of their head?
Bruce | | | | | Joined: Sep 2006 Posts: 3,596 'Bolter | | 'Bolter Joined: Sep 2006 Posts: 3,596 | I think 3/16" no more than 1/4".
| | | | | Joined: Oct 2006 Posts: 4,983 Master Gabster | | Master Gabster Joined: Oct 2006 Posts: 4,983 | I cut 2 pieces of roofing tar that comes in a roll at Home Depot. It is 1/8" and easy to vulcanize the two pieces together.
~Jim
| | | | | Joined: Mar 2008 Posts: 3,750 'Bolter | | 'Bolter Joined: Mar 2008 Posts: 3,750 | I cut up one of my old tyres and used a piece of sidewall,worked for me and my panel gaps aren't too bad if I say so myself.... 1950 Chevy Advance Design 3100 in ScotlandIn the Stovebolt GalleryMore pix on Flickr. I've definately got this truck thing in my blood ... my DNA sequence has torque settings"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.
| | | | | Joined: Apr 2013 Posts: 144 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2013 Posts: 144 | just finished parting a '58 apache last weekend, I recall the rubber pad being a tad over 1/4" thick (going from memory though). | | | | | Joined: Jul 2013 Posts: 224 Shop Shark | | Shop Shark Joined: Jul 2013 Posts: 224 | Tractor Supply sells a pad for cattle to stand on , comes in 2 sizes 1/4 and 3/16 its 3 ft. wide and you can buy it by the foot under $10. I have used it for body pads on my 1950 Ford coupe , works great, going on my 55 for Rad. pads...and pads on the bed....
" STUCK IN THE '50'S "
| | | | | Joined: Jul 2013 Posts: 224 Shop Shark | | Shop Shark Joined: Jul 2013 Posts: 224 | Just looked it up ...3/8 " hole 2x2 x 1/4 Sec 11 Sheet 2.11
" STUCK IN THE '50'S "
| | | | | Joined: Aug 2005 Posts: 1,186 Shop Shark | | Shop Shark Joined: Aug 2005 Posts: 1,186 | Just looked it up ...3/8 " hole 2x2 x 1/4 Sec 11 Sheet 2.11 I don't think that's the correct cushion. The one I found is this one, 3684763 lists the pad as 2 1/4" x 1 1/4" but no thickness is mentioned. I'm pretty sure 1/4" is probably correct.
Bruce | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Were there shims under your radiator mounting pads? These were used to help in the alignment of front sheet metal.
Last edited by tclederman; 08/17/2013 3:23 PM. Reason: Spelling correction
| | | | | Joined: Oct 2006 Posts: 4,983 Master Gabster | | Master Gabster Joined: Oct 2006 Posts: 4,983 | I don't believe the width and length is at all important, just the 1/4" thickness of the pad.
~Jim
| | | | | Joined: Jul 2013 Posts: 224 Shop Shark | | Shop Shark Joined: Jul 2013 Posts: 224 | I don't think that's the correct cushion. The one I found is this one, 3684763 lists the pad as 2 1/4" x 1 1/4" but no thickness is mentioned. I'm pretty sure 1/4" is probably correct.
The #is 378516 on sect.11 sheet 2.11 ( I Googled that # Thats where I got the rubber 2x2 x1/4 ) either size would pro. work... also couldn't find #3692225 body shim , { I figured it is metal looks the same size ..I would like to know...the #3684763 you found is for models 3800-4000-5000-6000 sect. 11 sheet 2.12...
" STUCK IN THE '50'S "
| | | | | Joined: Aug 2005 Posts: 1,186 Shop Shark | | Shop Shark Joined: Aug 2005 Posts: 1,186 | We're there shims under your radiator mounting pads? These were used to help in the alignment of front sheet metal. I have never found a radiator support shim on any '54-55 1st trucks I've parted out.
Bruce | | | | | Joined: Aug 2005 Posts: 1,186 Shop Shark | | Shop Shark Joined: Aug 2005 Posts: 1,186 | I'm pretty sure it is the right cushion and the correct support for the truck. My '54 3800 (comm.,util) radiator support has a single mounting point in the center with two bolts. All the aftermarket parts catalogs list a two pad system with shims as correct for '54 (possibly correct for some models but not all). I have found most parts suppliers are not always correct so you need to research and verify.
Bruce | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | We're there shims under your radiator mounting pads? These were used to help in the alignment of front sheet metal. I have never found a radiator support shim on any '54-55 1st trucks I've parted out.
Bruce See step 7 in "alignment" Your sheet metal alignment must have been good without use of shims? I have found at least one shim on all A-D trucks I have taken apart (they are mentioned in earlier A-D Shop Manuals, too). | | | | | Joined: Oct 2006 Posts: 4,983 Master Gabster | | Master Gabster Joined: Oct 2006 Posts: 4,983 | It would be my guess that many radiators were removed for some purpose, and like many mechanics have been known to do, the radiators were reinstalled without the shims.
~Jim
| | | | | Joined: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | Jim, the shims and the rubber cushion aren't under the radiator, they're under the core support and don't need to be touched once the alignment is finished. As Tim pointed out that adjustment is used when aligning the front clip. If nothing has been bent out of shape from an accident if you follow that hood alignment procedure as outlined it makes short work out of aligning the back of the hood, which has given many the 'Bolter a headache. Oh, and a several of the guys have posted, the 1/4" reinforced belting at the farm supply makes an excellent starting point for the alignment.
Denny Graham Sandwich, IL
Last edited by Denny Graham; 08/17/2013 9:39 PM.
Denny G Sandwich, IL
| | | | | Joined: Oct 2006 Posts: 4,983 Master Gabster | | Master Gabster Joined: Oct 2006 Posts: 4,983 | Jim, the shims and the rubber cushion aren't under the radiator, they're under the core support and don't need to be touched once the alignment is finished. As Tim pointed out that adjustment is used when aligning the front clip. If nothing has been bent out of shape from an accident if you follow that hood alignment procedure as outlined it makes short work out of aligning the back of the hood, which has given many the 'Bolter a headache. Oh, and a several of the guys have posted, the 1/4" reinforced belting at the farm supply makes an excellent starting point for the alignment.
Denny Graham Sandwich, IL You're right Denny. It's been 5 years and and a few fleeting brain cells. lol
~Jim
| | | | | Joined: Aug 2005 Posts: 1,186 Shop Shark | | Shop Shark Joined: Aug 2005 Posts: 1,186 | Hey Tim, what thickness shims have you found? I have honestly never found one.
Bruce | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Bruce, I believe you. I have found three styles under the radiator support. One type is a body shim incorrectly used. The ones that look correct are ones that are the same areal dimensions as the rubber pad, and they are very thin. I have found as many as four of these shins under a radiator. Here are some examples, ignore the non-radiator shims: https://www.chevsofthe40s.com/shop/...p;dept=Truck&searchtype=FT&Go=Go | | | | | Joined: Aug 2005 Posts: 1,186 Shop Shark | | Shop Shark Joined: Aug 2005 Posts: 1,186 | Thanks Tim, I feel kinda cheated to have never come across any! In guess I'll find out if I need them in the near future. Near future being a pretty vague timespan due to how long it seems to be taking to restore my truck!
Bruce | | | | | Joined: Apr 2013 Posts: 144 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2013 Posts: 144 | Ok, I dug into the gravel and found one where I'd parted that 58 apache, the thickness is .345. I incorrectly guessed at 1/4". They are NOT rubber (I was surprised), they are hard black plastic. There is a metal collar in the middle for the bolt to go through, that hole is roughly 1/2". I didn't measure the outer diamter of this little pad, I'd guess around 2.5". it goes UNDER the radiator support frame and the bolt goes downward through it and the bolt screws into the metal pad welded to the frame, now this is on '58, have no clue about your year. Hope that helps, lefty1 | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | lefty, the TF series is much different than any AD ... and the rubber pieces are both sides of the core support with the 'metal collar' going thru both Bill | | | | | Joined: Aug 2005 Posts: 1,186 Shop Shark | | Shop Shark Joined: Aug 2005 Posts: 1,186 | Bill, that image is different than mine also. Single center support. I'll get some pictures of it and post them here. Got it installed today....finally.
Bruce | | |
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