Cab mounts - Poly or rubber? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70Chevy4x4Nut · 07-01-2003, 04:28 PM

I know this is probably on here somewhere, but I'm not allowed to search, so here goes again.
I have heard mix reviews about what type of cab mounts to use, either poly or rubber. I would like to bring this up again. Would like your thoughts and/or experiences with the poly. Someone said they squeek. But someone else said they don't if you use the grease it comes with. Well my kit didn"t come with any grease so I'm wondering now if I want to use them. Won't be doing any major offroading with this vehicle. Does it make the ride noticably rougher? Would like to use the poly because they are supposed to be the best. Your thoughts please.

My truck is a 70 Chevy 4x4 1/2 ton.

Thanks

Canada20 · 07-02-2003, 07:06 PM

I'm no authority on this but I do remember reading a post or 2 about this; maybe it'll help get the ball rolling. I think the consensus by the end of the last thread I checked was that rubber ones are better because they soak up more vibrations, don't squeak and won't cause mounts or stress point on the cab to crack over time. Also, cab mounts don't really have that much to do with handling so I think the ideal that was settled on was poly for all suspension stuff and rubber for the mounts.

Call me on it if I'm wrong, please!:p

Greg

BaggedC10 · 07-02-2003, 07:45 PM

Check-out www.P-S-T.com for a cab mount set. If they don't make a kit for your application, I would recommend polyurethane. Less body-to-frame deflection, very durable, and resistant to the elements that build-up over time. The body will feel more solid driving down the road but you will notice a bit more vibration. Not too much from what I've been told though. Use a high-quality lithium based grease and the mounts shouldn't squeak. Another advantage to PST is you don't have to grease the bushings.....period!

dmnall · 07-03-2003, 02:15 AM

Well from what I have heard about the poly cab mounts is they give a rougher ride, personally I would just use the rubber for cab, bed and Core support and use the poly for the suspension!

Charlie

crazy longhorn · 07-03-2003, 11:05 AM

i have poly mounts on my longhorn due to clutch linkage issues with the tilt front clip. the cab wanted to squirm around on the frame with only 4 mounts. The poly mounts tightened that up, & gave me back the "feel" on the clutch peddle. they do ride stiffer than the rubber mounts, but I havent noticed any squeaks. Good luck,crazyL

07-01-2003, 04:28 PM	#1
70Chevy4x4Nut Registered User Join Date: Dec 2002 Location: TX Posts: 311	Cab mounts - Poly or rubber? I know this is probably on here somewhere, but I'm not allowed to search, so here goes again. I have heard mix reviews about what type of cab mounts to use, either poly or rubber. I would like to bring this up again. Would like your thoughts and/or experiences with the poly. Someone said they squeek. But someone else said they don't if you use the grease it comes with. Well my kit didn"t come with any grease so I'm wondering now if I want to use them. Won't be doing any major offroading with this vehicle. Does it make the ride noticably rougher? Would like to use the poly because they are supposed to be the best. Your thoughts please. My truck is a 70 Chevy 4x4 1/2 ton. Thanks Last edited by 70Chevy4x4Nut; 07-01-2003 at 04:36 PM.

07-02-2003, 07:06 PM	#2
Canada20 Registered User Join Date: Jun 2001 Location: Calgary, Alberta, Canada Posts: 802	I'm no authority on this but I do remember reading a post or 2 about this; maybe it'll help get the ball rolling. I think the consensus by the end of the last thread I checked was that rubber ones are better because they soak up more vibrations, don't squeak and won't cause mounts or stress point on the cab to crack over time. Also, cab mounts don't really have that much to do with handling so I think the ideal that was settled on was poly for all suspension stuff and rubber for the mounts. Call me on it if I'm wrong, please!:p Greg __________________ No such thing as a stupid question, right?

07-02-2003, 07:45 PM	#3
BaggedC10 Under construction! Join Date: Aug 2002 Location: NorCal Posts: 1,065	Check-out www.P-S-T.com for a cab mount set. If they don't make a kit for your application, I would recommend polyurethane. Less body-to-frame deflection, very durable, and resistant to the elements that build-up over time. The body will feel more solid driving down the road but you will notice a bit more vibration. Not too much from what I've been told though. Use a high-quality lithium based grease and the mounts shouldn't squeak. Another advantage to PST is you don't have to grease the bushings.....period! __________________ 2001 Silverado bagged on 22's. Sold

07-03-2003, 02:15 AM	#4
dmnall Registered User Join Date: Apr 2001 Location: Goleta, CA Posts: 505	Well from what I have heard about the poly cab mounts is they give a rougher ride, personally I would just use the rubber for cab, bed and Core support and use the poly for the suspension! Charlie __________________ 1968 C10 Truck LWB Fleetside 1968 C10 Truck SWB Stepside 1994 K2500 Ext Cab Fleetside 2008 Honda Civic Si lease

07-03-2003, 11:05 AM	#5
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	i have poly mounts on my longhorn due to clutch linkage issues with the tilt front clip. the cab wanted to squirm around on the frame with only 4 mounts. The poly mounts tightened that up, & gave me back the "feel" on the clutch peddle. they do ride stiffer than the rubber mounts, but I havent noticed any squeaks. Good luck,crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

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