Cab mount mounting hardware ???? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

66 lwb cs · 08-29-2011, 10:12 PM

Ok so I did the search and couldn't find an answer, I installed my new C10 mounts on my C20 cab but ran into a problem. When I installed the bolt that goes into the bottom of the cab it is completely bottomed out but the bottom rubber piece never compressed. It will spin slightly by hand. I assume this is not right and am wondering what to do. I know I can put a stack of washers on it but not sure thats the right way to fix the problem. I went to Home Depot for a zinc coated replacement to my O.G. bolt a while back and they had nothing like the bolt for the C20 mounts so I'm not confident that they will have anything similair to the C10 bolt. I tried the C20 bolt but it is too short. The rubber pieces are in good shape and are not mashed down and distorted at all when not installed so I am at a loss. Any help appreciated. Thanks in advance.

cb1965 · 08-29-2011, 11:55 PM

i just changed my mounts from c20 to a c10.. i got new cab mounts and the kit came with the hardware. i had to remove the original nut and replace it with the one in the kit. the nuts are in a small housing under the gas tank i removed them and put in the new one......... you can see one from the passenger side

66 lwb cs · 08-30-2011, 11:51 AM

Perhaps I should have specified my whole kit came from an original 66 C10 so the bolts and hardwar were for mounting in the original mounting hole. I did not purchase an aftermarket kit so do I need to drill everything out and go in from the top?

**Captainfab** · 08-31-2011, 12:00 AM

If you areusing original hardware and the bolt is bottoming out in the nut, you must be missing a plate or washer somewhere. Is this on both sides? Maybe if you could post a pic of what you have in your cab mount assembly, we can see if something is missing.

66 lwb cs · 09-01-2011, 12:45 PM

Will post this weekend away for work right now but what I have is the bracket to rubber spacer rings and 2 plates that go on top of each ring and the bolt I have not mounted the other side yet still have to chisel out OG part but will look at the bolts maybe they are different lengths thanks.

**LostMy65** · 09-06-2011, 03:47 PM

What height is does the cab sit off the frame?
Do they give you a measurement in the kit?

Brandonc20 · 09-06-2011, 03:58 PM

Does it fix the broken back using c10 on a c20
Posted via Mobile Device

**aerotruk63** · 09-06-2011, 04:11 PM

**LostMy65** · 09-06-2011, 05:15 PM

Quote:

Originally Posted by aerotruk63

That depicts exactly what I need; the height from top of frame rail to the bottom of rear cab mount support.
Posted via Mobile Device

**aerotruk63** · 09-06-2011, 05:46 PM

LostMy65 something around 1"+, did my K10 last year.
Mind you it's for a 60-62 frame. Courtesy of 1Bad62Pro/Street

**LostMy65** · 09-06-2011, 06:22 PM

Thanks aero,
I modded the pic you attached:

**LostMy65** · 09-06-2011, 08:06 PM

The reason I'm wanting that measurement, is I'm thinking about making my own perch.
I think $80 is a little steep for a couple of brackets.
Here is mine since the original rubber has separated from the perch:

Posted via Mobile Device

**LostMy65** · 09-07-2011, 09:28 PM

Could someone get me this measurement?

**Captainfab** · 09-08-2011, 12:20 AM

I don't have any C10's that are assembled. Would the measurement from the top of the frame to the top of the rear mount bracket do you any good?

**LostMy65** · 09-08-2011, 12:29 AM

Quote:

Originally Posted by Captainfab

I don't have any C10's that are assembled. Would the measurement from the top of the frame to the top of the rear mount bracket do you any good?

Actually, I see now that aero went back and edited his post to say 1"+.

But yes, if you could get me that measurement it would help.

Oddly, the measurement on the schematic he attached and this one, both show the brace itself at 1.06.
(63-66)

**LostMy65** · 09-08-2011, 12:36 AM

But then again,
this appears to show the mount bracket at barely over an inch.
I bet the bracket is as the schematic shows it and should be mounted at 1.06" above top of frame.
Here it looks as the measurement I'm looking for is around 2" (top of frame to bottom of cab support)
Honestly, it isn't that critical. I'll mount it slightly low. I can always ad a plate spacer or two if needed.

**LostMy65** · 09-08-2011, 12:50 AM

2.12" looks to be the height from top of frame to bottom of cab support:

66farmer · 01-24-2012, 10:43 AM

[QUOTE=aerotruk63;4885028]

[/QUOTE

Can someone give me the length of the rear cab bolt for a 66 C10. The kit I bought from Brothers came with a 1/2 bolt it should of been 7/16.
Thanks for the help

08-29-2011, 10:12 PM	#1
66 lwb cs Registered User Join Date: Apr 2011 Location: aurora co Posts: 208	Cab mount mounting hardware ???? Ok so I did the search and couldn't find an answer, I installed my new C10 mounts on my C20 cab but ran into a problem. When I installed the bolt that goes into the bottom of the cab it is completely bottomed out but the bottom rubber piece never compressed. It will spin slightly by hand. I assume this is not right and am wondering what to do. I know I can put a stack of washers on it but not sure thats the right way to fix the problem. I went to Home Depot for a zinc coated replacement to my O.G. bolt a while back and they had nothing like the bolt for the C20 mounts so I'm not confident that they will have anything similair to the C10 bolt. I tried the C20 bolt but it is too short. The rubber pieces are in good shape and are not mashed down and distorted at all when not installed so I am at a loss. Any help appreciated. Thanks in advance. __________________ 66 C20 LWB CS 327/TH400 A/C

08-29-2011, 11:55 PM	#2
cb1965 Registered User Join Date: Mar 2010 Location: san jose, california Posts: 508	Re: Cab mount mounting hardware ???? i just changed my mounts from c20 to a c10.. i got new cab mounts and the kit came with the hardware. i had to remove the original nut and replace it with the one in the kit. the nuts are in a small housing under the gas tank i removed them and put in the new one......... you can see one from the passenger side Attached Images __________________ '66 chevy lwb c10 '65 chevy lwb c20

08-30-2011, 11:51 AM	#3
66 lwb cs Registered User Join Date: Apr 2011 Location: aurora co Posts: 208	Re: Cab mount mounting hardware ???? Perhaps I should have specified my whole kit came from an original 66 C10 so the bolts and hardwar were for mounting in the original mounting hole. I did not purchase an aftermarket kit so do I need to drill everything out and go in from the top? __________________ 66 C20 LWB CS 327/TH400 A/C

08-31-2011, 12:00 AM	#4
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: Cab mount mounting hardware ???? If you areusing original hardware and the bolt is bottoming out in the nut, you must be missing a plate or washer somewhere. Is this on both sides? Maybe if you could post a pic of what you have in your cab mount assembly, we can see if something is missing. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

09-01-2011, 12:45 PM	#5
66 lwb cs Registered User Join Date: Apr 2011 Location: aurora co Posts: 208	Re: Cab mount mounting hardware ???? Will post this weekend away for work right now but what I have is the bracket to rubber spacer rings and 2 plates that go on top of each ring and the bolt I have not mounted the other side yet still have to chisel out OG part but will look at the bolts maybe they are different lengths thanks. __________________ 66 C20 LWB CS 327/TH400 A/C

09-06-2011, 03:47 PM	#6
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,468	Re: Cab mount mounting hardware ???? What height is does the cab sit off the frame? Do they give you a measurement in the kit? __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

09-06-2011, 03:58 PM	#7
Brandonc20 Registered User Join Date: May 2011 Location: Santa Clarita California Posts: 118	Re: Cab mount mounting hardware ???? Does it fix the broken back using c10 on a c20 Posted via Mobile Device

09-06-2011, 04:11 PM	#8
aerotruk63 Check The Champ, Demonstrator Join Date: Jun 2009 Location: Montreal,Quebec Posts: 6,625	Re: Cab mount mounting hardware ???? __________________ 1963 *Chevrolet Truck* Literature LINK: https://picasaweb.google.com/113840717762774560215 YouTube Channel with 20+ Original *Chevrolet Truck* Salesmen, Mechanics & Service Department Training Slideshows. https://www.youtube.com/results?sear...otruk63&page=1

09-06-2011, 05:46 PM	#10
aerotruk63 Check The Champ, Demonstrator Join Date: Jun 2009 Location: Montreal,Quebec Posts: 6,625	Re: Cab mount mounting hardware ???? LostMy65 something around 1"+, did my K10 last year. Mind you it's for a 60-62 frame. Courtesy of 1Bad62Pro/Street __________________ 1963 *Chevrolet Truck* Literature LINK: https://picasaweb.google.com/113840717762774560215 YouTube Channel with 20+ Original *Chevrolet Truck* Salesmen, Mechanics & Service Department Training Slideshows. https://www.youtube.com/results?sear...otruk63&page=1 Last edited by aerotruk63; 09-06-2011 at 05:59 PM.

09-06-2011, 06:22 PM	#11
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,468	Re: Cab mount mounting hardware ???? Thanks aero, I modded the pic you attached: __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

09-06-2011, 08:06 PM	#12
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,468	Re: Cab mount mounting hardware ???? The reason I'm wanting that measurement, is I'm thinking about making my own perch. I think $80 is a little steep for a couple of brackets. Here is mine since the original rubber has separated from the perch: Posted via Mobile Device __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

09-07-2011, 09:28 PM	#13
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,468	Re: Cab mount mounting hardware ???? Could someone get me this measurement? __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

09-08-2011, 12:20 AM	#14
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: Cab mount mounting hardware ???? I don't have any C10's that are assembled. Would the measurement from the top of the frame to the top of the rear mount bracket do you any good? __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

09-08-2011, 12:36 AM	#16
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,468	Re: Cab mount mounting hardware ???? But then again, this appears to show the mount bracket at barely over an inch. I bet the bracket is as the schematic shows it and should be mounted at 1.06" above top of frame. Here it looks as the measurement I'm looking for is around 2" (top of frame to bottom of cab support) Honestly, it isn't that critical. I'll mount it slightly low. I can always ad a plate spacer or two if needed. __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

09-08-2011, 12:50 AM	#17
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,468	Re: Cab mount mounting hardware ???? 2.12" looks to be the height from top of frame to bottom of cab support: __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035



Register or Log In To remove these advertisements.

01-24-2012, 10:43 AM	#18
66farmer Registered User Join Date: Jun 2007 Location: North Plains Oregon Posts: 684	Re: Cab mount mounting hardware ???? [QUOTE=aerotruk63;4885028][/QUOTE Can someone give me the length of the rear cab bolt for a 66 C10. The kit I bought from Brothers came with a 1/2 bolt it should of been 7/16. Thanks for the help

Register or Log In To remove these advertisements.