Body mount shims? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**rs74** · 01-29-2014, 10:25 AM

I bought a body mount kit for my short bed and they came with square (shims)? Is tha exactly what they are is shims? I didn't take any off mine when I disassembled it. I just assume that I use them in case I need to square everything up. Is that correct.

Tx Firefighter · 01-29-2014, 10:30 AM

Square shim with square hole in the middle ?

**rs74** · 01-29-2014, 10:36 AM

Quote:

Originally Posted by Tx Firefighter

Square shim with square hole in the middle ?

Round hole.

Tx Firefighter · 01-29-2014, 10:43 AM

They look like the ones that are used under the bolt heads of the core support mounts. They go down inside the well on top of the core support, then you drop the bolt through them. It spreads the load from the bolt to keep from crushing the sheetmetal core support.

**rs74** · 01-29-2014, 10:45 AM

Not sure as there are four of them and they come in the set for the cab. The cab, bed, and core support hardware all came in their own boxes. Sorry I should have been a bit more specific. I had cab mount in my head and didn't say that.

Tx Firefighter · 01-29-2014, 10:49 AM

Looking again at your picture, if that's a cab emblem for size reference, those are some big shims and definitely not the core support washers. They'd be like half that size.

I'll step back and see what others offer up so maybe I can learn something here.

**rs74** · 01-29-2014, 10:54 AM

Quote:

Originally Posted by Tx Firefighter

Looking again at your picture, if that's a cab emblem for size reference, those are some big shims and definitely not the core support washers. They'd be like half that size.

I'll step back and see what others offer up so maybe I can learn something here.

Yeah they are 2 3/4" shims.

**old Rusty C10** · 01-29-2014, 12:44 PM

they look like they go between the cab n mount prolly a height thing

**rs74** · 01-29-2014, 12:48 PM

I just put the cab mounts on the other day and left these off. I am going to wait until I get the bed liner sprayed in and fenders put on before I tighten the cab mounts all the way down and then I guess I will see if they are needed. That way I can see how all the body lines match up. Anybody have a pic of their untouched cab mounts to see if they are in there.

J Knight · 01-29-2014, 01:09 PM

When you put the cab, front clip, and bed on the frame with new bushings you can use these shims on top of the bushings or for the bed on top of the frame to line up the body. Its just an option if you need it. Ive had to do it on a truck before to match up the body lines. If you bed lines up fine you dont need them.

dieseldawg142 · 01-29-2014, 05:18 PM

took my untouched mounts out the other yr, the spacer goes on top of the mount against the body
http://67-72chevytrucks.com/vboard/a...9&d=1362991886

bdiamond · 01-29-2014, 05:41 PM

The truck I got a few donor cups from had them between the driver side front cab mount and floor. My blazer had a bottom washer between the cab and upper mount as a shim. Not sure why, it seems to line up without it. Anyone seen that?

01-29-2014, 10:25 AM	#1
rs74 Senior Member Join Date: Jun 2010 Location: Illinois Posts: 2,957	Body mount shims? I bought a body mount kit for my short bed and they came with square (shims)? Is tha exactly what they are is shims? I didn't take any off mine when I disassembled it. I just assume that I use them in case I need to square everything up. Is that correct. __________________ Roy 85 Short Bed Silverado- Work in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=564818 1987 R10 shortie

01-29-2014, 10:30 AM	#2
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Body mount shims? Square shim with square hole in the middle ? __________________ I'm on the Instagram- @Gearhead_Kevin

01-29-2014, 10:43 AM	#4
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Body mount shims? They look like the ones that are used under the bolt heads of the core support mounts. They go down inside the well on top of the core support, then you drop the bolt through them. It spreads the load from the bolt to keep from crushing the sheetmetal core support. __________________ I'm on the Instagram- @Gearhead_Kevin

01-29-2014, 10:45 AM	#5
rs74 Senior Member Join Date: Jun 2010 Location: Illinois Posts: 2,957	Re: Body mount shims? Not sure as there are four of them and they come in the set for the cab. The cab, bed, and core support hardware all came in their own boxes. Sorry I should have been a bit more specific. I had cab mount in my head and didn't say that. __________________ Roy 85 Short Bed Silverado- Work in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=564818 1987 R10 shortie

01-29-2014, 10:49 AM	#6
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Body mount shims? Looking again at your picture, if that's a cab emblem for size reference, those are some big shims and definitely not the core support washers. They'd be like half that size. I'll step back and see what others offer up so maybe I can learn something here. __________________ I'm on the Instagram- @Gearhead_Kevin

01-29-2014, 12:44 PM	#8
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,310	Re: Body mount shims? they look like they go between the cab n mount prolly a height thing __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

01-29-2014, 12:48 PM	#9
rs74 Senior Member Join Date: Jun 2010 Location: Illinois Posts: 2,957	Re: Body mount shims? I just put the cab mounts on the other day and left these off. I am going to wait until I get the bed liner sprayed in and fenders put on before I tighten the cab mounts all the way down and then I guess I will see if they are needed. That way I can see how all the body lines match up. Anybody have a pic of their untouched cab mounts to see if they are in there. __________________ Roy 85 Short Bed Silverado- Work in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=564818 1987 R10 shortie

01-29-2014, 01:09 PM	#10
J Knight Registered User Join Date: Jun 2011 Location: Baytown TX Posts: 2,219	Re: Body mount shims? When you put the cab, front clip, and bed on the frame with new bushings you can use these shims on top of the bushings or for the bed on top of the frame to line up the body. Its just an option if you need it. Ive had to do it on a truck before to match up the body lines. If you bed lines up fine you dont need them. __________________ John 82 Chevy Silverado 350ci/TH350

01-29-2014, 05:18 PM	#11
dieseldawg142 Registered User Join Date: Jul 2011 Location: back 40, bc Posts: 3,903	Re: Body mount shims? took my untouched mounts out the other yr, the spacer goes on top of the mount against the body http://67-72chevytrucks.com/vboard/a...9&d=1362991886

01-29-2014, 05:41 PM	#12
bdiamond Registered User Join Date: Sep 2007 Location: Wichita Falls, Texas Posts: 459	Re: Body mount shims? The truck I got a few donor cups from had them between the driver side front cab mount and floor. My blazer had a bottom washer between the cab and upper mount as a shim. Not sure why, it seems to line up without it. Anyone seen that?

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