How do the rubber cab mounts go? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**1971Stepside** · 11-29-2003, 11:41 PM

Lost Wages gave me a set of radiator support and cab mounts (rubber) but I can't figure out what goes where.

I have the radiator support figured out I believe. It uses a smaller diameter rubber and has flat rubber (rather than coned) pieces for the bottom.

On the cab I have two different thickness rubber pads. Do the thicker ones go in the front or the back of the cab? All four have the coned pieces for the bottoms.

I would like to set the cab back on the frame tomorrow, but I need to know how these go first. Any help would be greatly appreciated.

**old Rusty C10** · 11-29-2003, 11:47 PM

if ya have a LMC book it shows ya in the pic how they go

**1971Stepside** · 11-29-2003, 11:49 PM

I do have the LMC book, but it doesn't show which end the thicker rubber pads go on. Front or back? Their pic makes it look like both are the same.

*rage'nrat638* · 11-29-2003, 11:57 PM

here u go

*rage'nrat638* · 11-30-2003, 12:13 AM

another

**1971Stepside** · 11-30-2003, 12:30 AM

for taking the time to post that pic for me. I think that pic is for the C-20's if I'm not mistaken.

Here is what I have....

70 CST 4X4 · 11-30-2003, 12:37 AM

Those pictures posted of how they go together were for the 3/4 ton and 4x4 mounts. I just put a set on my 4x4. If you look at the LMC catalog for the 1/2 tons it shows the thicker mounts in the rear. Hope this helps

Are those poly mounts?

*rage'nrat638* · 11-30-2003, 12:56 AM

1/2 toners

Southpa · 11-30-2003, 01:58 AM

Are there any torque specs with those or do you just reef on them til' you can't reef no mo? Just wondering because I got lots of different advice in that area.

70 CST 4X4 · 11-30-2003, 02:41 AM

30 ft lbs. This was in the assembly manual. Should bottom out then go around 30 ft. lbs.
** use some anti seize on the threads**

*dtlilly* · 11-30-2003, 02:48 AM

Hey Mark, thanks for the pic of the C20/K10-20 rubber. I have a cab mount set that I bought for the 4X4, but decided to sell it and restore the 9 foot step. Now I know they can be used on the C-30 as well.

**1971Stepside** · 12-01-2003, 12:43 AM

Just FYI. The thicker ones went in the front.

11-29-2003, 11:41 PM	#1
1971Stepside Almost Satisfied Join Date: Mar 2002 Location: Springfield, MO Posts: 2,932	How do the rubber cab mounts go? Lost Wages gave me a set of radiator support and cab mounts (rubber) but I can't figure out what goes where. I have the radiator support figured out I believe. It uses a smaller diameter rubber and has flat rubber (rather than coned) pieces for the bottom. On the cab I have two different thickness rubber pads. Do the thicker ones go in the front or the back of the cab? All four have the coned pieces for the bottoms. I would like to set the cab back on the frame tomorrow, but I need to know how these go first. Any help would be greatly appreciated. __________________ 1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far."

11-29-2003, 11:47 PM	#2
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,276	if ya have a LMC book it shows ya in the pic how they go __________________ 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!!

11-29-2003, 11:49 PM	#3
1971Stepside Almost Satisfied Join Date: Mar 2002 Location: Springfield, MO Posts: 2,932	I do have the LMC book, but it doesn't show which end the thicker rubber pads go on. Front or back? Their pic makes it look like both are the same. __________________ 1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far."

11-29-2003, 11:57 PM	#4
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	here u go Last edited by rage'nrat638; 07-12-2007 at 07:09 AM.

11-30-2003, 12:13 AM	#5
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	another Last edited by rage'nrat638; 07-12-2007 at 07:09 AM.

11-30-2003, 12:30 AM	#6
1971Stepside Almost Satisfied Join Date: Mar 2002 Location: Springfield, MO Posts: 2,932	Thanks for taking the time to post that pic for me. I think that pic is for the C-20's if I'm not mistaken. Here is what I have.... Attached Images __________________ 1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far."

11-30-2003, 12:37 AM	#7
70 CST 4X4 Have A Nice Day! Join Date: May 2003 Location: California Posts: 356	Those pictures posted of how they go together were for the 3/4 ton and 4x4 mounts. I just put a set on my 4x4. If you look at the LMC catalog for the 1/2 tons it shows the thicker mounts in the rear. Hope this helps Are those poly mounts? __________________ 1970 CST K10 350/350/205 Short Bed - Fleetside Tach-Tilt-A/C-Tow Hooks Front & Rear Disc Brakes Front & Rear Posi 3.73 Gears 30 Gallon Stainless Fuel Tank SOLD 01/18 !!!!! 2007 2500 HD Classic Crew Cab LT2 4X4 Duramax LBZ Last edited by 70 CST 4X4; 11-30-2003 at 12:40 AM.

11-30-2003, 12:56 AM	#8
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	1/2 toners Last edited by rage'nrat638; 07-12-2007 at 07:09 AM.

11-30-2003, 01:58 AM	#9
Southpa Registered User Join Date: May 2000 Location: Victoria, BC, Canada Posts: 2,410	Are there any torque specs with those or do you just reef on them til' you can't reef no mo? Just wondering because I got lots of different advice in that area. __________________ 1970 GMC 1500 Custom Original 350/TH350 Victoria, BC, Canada You can wish in one hand and crap in the other. See which one gets filled first.

11-30-2003, 02:41 AM	#10
70 CST 4X4 Have A Nice Day! Join Date: May 2003 Location: California Posts: 356	30 ft lbs. This was in the assembly manual. Should bottom out then go around 30 ft. lbs. use some anti seize on the threads __________________ 1970 CST K10 350/350/205 Short Bed - Fleetside Tach-Tilt-A/C-Tow Hooks Front & Rear Disc Brakes Front & Rear Posi 3.73 Gears 30 Gallon Stainless Fuel Tank SOLD 01/18 !!!!! 2007 2500 HD Classic Crew Cab LT2 4X4 Duramax LBZ Last edited by 70 CST 4X4; 11-30-2003 at 02:45 AM.

11-30-2003, 02:48 AM	#11
dtlilly Account Suspended Join Date: Jan 2003 Location: Shadow of Lambeau Field Posts: 5,597	Hey Mark, thanks for the pic of the C20/K10-20 rubber. I have a cab mount set that I bought for the 4X4, but decided to sell it and restore the 9 foot step. Now I know they can be used on the C-30 as well.

12-01-2003, 12:43 AM	#12
1971Stepside Almost Satisfied Join Date: Mar 2002 Location: Springfield, MO Posts: 2,932	Just FYI. The thicker ones went in the front. __________________ 1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far."



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