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04-12-2003, 07:45 PM | #1 |
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Join Date: Jul 2001
Location: North Delta, British Columbia
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Cab mount rubber question...
I have new rubber cab mounts and was wondering if it is necessary to put some kind of shim on top of the rubber? Plus, my kit came with 2 different sized rubber pucks. Do the small ones go in the front or the back.
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1992 Gmc 2wd 1972 Chevy Blazer 2wd |
04-12-2003, 08:16 PM | #2 |
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Location: Victoria, BC, Canada
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Typically, those kits NEVER come with instructions. The only way I managed was to try to remember the order everything came off. Luckily, there was still something left to make sense from, not the case for most other trucks, . Here are pictures that might help, one of the old rear mounts...
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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. Last edited by Southpa; 04-12-2003 at 08:27 PM. |
04-12-2003, 08:17 PM | #3 |
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and old front left. (before)
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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. |
04-12-2003, 08:24 PM | #4 |
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(after). As you can see the new rubber looks nothing like the old so you have to use your own discretion. The main idea is to keep that cab level. If its bowed up in the middle when you are done then something is wrong. Used to have a whole whack of pictures on MSN but I believe they've dumped my photo albums.
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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. |
04-12-2003, 09:05 PM | #5 |
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Did you end up putting any kind of shim over top of the rubber?
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1992 Gmc 2wd 1972 Chevy Blazer 2wd |
04-13-2003, 04:44 AM | #6 |
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The large washers are used to allow for even weight distribution over the entire surface of the rubber. If not then the mounting surfaces (cab rails in front and cab crossmember in rear) would cut the tops and the rubbers would fail. You shouldn't have to add anything else, ie. for shimming, so long as you have the right components in place.
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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. Last edited by Southpa; 04-13-2003 at 04:47 AM. |
04-13-2003, 05:20 AM | #7 |
chevelito
Join Date: Jun 2001
Location: Honolulu, HI USA
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Southpa,
Is that the slip over style cab supports that you have on there? Any positives and negatives on going that route? Thanks, jay
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04-13-2003, 03:53 PM | #8 |
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The front supports I installed are OE and my rears are slipons. At the time my supplier didn't have the rear OEs. The OE fronts are solid 12 ga. painted steel. The rear slipons are 14 ga. satin coat (fine galvanizing). The slipons are made slightly larger to cover over the original supports but I didn't like the idea of having any rot underneath. So I cut out all the bad metal, painted rust converter on what was left and then welded in the slipons. Slipons are OK, but slightly thinner metal. Just make sure there isn't any rust underneath. I also sprayed a heavy rubber-based undercoating on everything when I was done.
I had a ton of pics on MSN up until a few days ago. I guess I overstayed my welcome. I'll have to find another web hosting site for my pics. Any ideas?
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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. |
04-13-2003, 07:21 PM | #9 |
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Location: Kent, WA
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The PO put slip-ons on my '67 over the old cab mounts. The moisture got inside them...why would you expect otherwise and they rusted from the inside out. I took them off and they were filled with the rusted remains of the old cab supports. I would cut the old ones off and weld those slip-on's to the cab. Just my 0.02...of course I look for any excuse to weld something. Park your truck in my driveway for too long and it is likely to get the stake pockets shaved.
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04-13-2003, 08:28 PM | #10 |
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Cab mounts.
I checked out the pictures in several vendor's catalogs to see how they should go. After installing the side trim and discovering that it was "off - I did the mounts again with several washers in there to make everything look right. Metal is metal. I don't think those rubber spacers know if they are up against the frame or up against a metal washer. |
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