Cab Mounts - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mr402 · 01-25-2004, 02:22 PM

Does anyone have any experience with the polyurathane cab mount kits? Will it make the ride considerabley harsher? Truck is a GMC 3/4 ton. It already feels like the suspension is welded in unless it has a good sized load in it.

**Stocker** · 01-25-2004, 03:29 PM

Quote:

Originally posted by mr402
Truck is a GMC 3/4 ton. It already feels like the suspension is welded in unless it has a good sized load in it.

Sounds more like a very stiff (heavy duty) suspension than a cab mount problem. Is it a camper special? What's the GVWR (on the sticker inside the driver's door jamb)? What tires at what air pressure?

**JIMs70GMC** · 01-25-2004, 03:42 PM

I installed prothane poly mounts on my 3/4 GMC, it does not make the ride stiffer but transfers more road vibrations to the cab. But not bad, in my situation the rubber mounts were gone and a PO had cut up tires and stuck the pieces over the old rubber mounts. Needless to say it felt better w/ the poly mounts.

P.S. welcome to the board!

FRENCHBLUE72 · 01-25-2004, 03:52 PM

I installed the poly mount's on my blazer and it does bring up some road noise but should last forever.... Welcome to the board from southern oregon..

mr402 · 01-25-2004, 05:02 PM

No problems except the existing mounts are old, cracked etc. I'm looking to replace them and was wondereing about advantages of polyurethane vs. rubber.

Thanks for the replys

CG · 01-25-2004, 10:49 PM

i have the poly mounts and dont really notice any extra vibration but mine is a 4x4 and its a lil bumpy anyway.

**Tim Christian** · 01-25-2004, 11:07 PM

I prefer the rubber mounts. If the first set lasted 30 years you should not have to replace them for another 30 with the rubber and the ride is better.

01-25-2004, 02:22 PM	#1
mr402 Registered User Join Date: Jan 2004 Location: Elmira, Oregon Posts: 449	Cab Mounts Does anyone have any experience with the polyurathane cab mount kits? Will it make the ride considerabley harsher? Truck is a GMC 3/4 ton. It already feels like the suspension is welded in unless it has a good sized load in it.

01-25-2004, 03:42 PM	#3
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	I installed prothane poly mounts on my 3/4 GMC, it does not make the ride stiffer but transfers more road vibrations to the cab. But not bad, in my situation the rubber mounts were gone and a PO had cut up tires and stuck the pieces over the old rubber mounts. Needless to say it felt better w/ the poly mounts. P.S. welcome to the board! __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

01-25-2004, 03:52 PM	#4
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,606	I installed the poly mount's on my blazer and it does bring up some road noise but should last forever.... Welcome to the board from southern oregon.. __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

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01-25-2004, 05:02 PM	#5
mr402 Registered User Join Date: Jan 2004 Location: Elmira, Oregon Posts: 449	No problems except the existing mounts are old, cracked etc. I'm looking to replace them and was wondereing about advantages of polyurethane vs. rubber. Thanks for the replys

01-25-2004, 10:49 PM	#6
CG BlahBlahBlah Join Date: Feb 2002 Location: Wa. Posts: 20,035	i have the poly mounts and dont really notice any extra vibration but mine is a 4x4 and its a lil bumpy anyway.

01-25-2004, 11:07 PM	#7
Tim Christian Senior Member Join Date: Dec 1999 Location: TN/VA Posts: 6,388	I prefer the rubber mounts. If the first set lasted 30 years you should not have to replace them for another 30 with the rubber and the ride is better.



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