frame to cab mounts - The 1947 - Present Chevrolet & GMC Truck Message Board Network

fire235 · 04-15-2005, 11:40 AM

Can I replace the bushings on the cab mounts without removing the entire cab? Mine need replaced and I was hoping I could do without much trouble.
Thanks guys.

David Johnson · 04-15-2005, 12:17 PM

Yes they can be replaced without removing the cab. Just take out the bolts (4) and put a little pressure on the bottom of the cab with a floor jack, remove and replace the mounts. The old ones are probably smashed down and the new ones will be thicker, so you'll have to lift the cab a little with the jack. By the way, you should replace your radiator core support bushings too. If you don't, you may have problems with your fenders wanting to shift on you which will effect you door opening. Also, since you've gone this far, you might as well replace the bed pads. Hope that helped.

**JIMs70GMC** · 04-15-2005, 12:33 PM

I'd also loosen or replace the rad support mounts also.

Looks like I didn't read far enough. Also be prepared to cut the bolts off and replace them. I had to with 4 out of 6 on my GMC.

fire235 · 04-15-2005, 12:53 PM

Thanks for the info guys. Guess I'll get started replacing bushings now.

JimKshortstep4x4 · 04-15-2005, 08:52 PM

All the cabs that I have seen have the front cab mount bolts welded to the floor, (the large 9/16 diameter bolts). You may want to grind the welds so as to remove the bolts otherwise the cab will have to be lifted high enough to clear.

Jim

Sweet72 · 04-15-2005, 09:11 PM

Quote:

Originally Posted by JimKshortstep4x4

All the cabs that I have seen have the front cab mount bolts welded to the floor,

Jim

Mine were not welded. Maybe they welded them so one man could install the cab from under the cab and the bolts wouldn't turn. The rear cab mount bolts are installed from the bottom up and threaded into cage nuts.

David Johnson · 04-16-2005, 02:16 AM

04-15-2005, 11:40 AM	#1
fire235 Registered User Join Date: Oct 2004 Location: East Texas Posts: 76	frame to cab mounts Can I replace the bushings on the cab mounts without removing the entire cab? Mine need replaced and I was hoping I could do without much trouble. Thanks guys.

04-15-2005, 12:17 PM	#2
David Johnson Registered User Join Date: Dec 2004 Location: Shawnee, OK Posts: 614	Yes they can be replaced without removing the cab. Just take out the bolts (4) and put a little pressure on the bottom of the cab with a floor jack, remove and replace the mounts. The old ones are probably smashed down and the new ones will be thicker, so you'll have to lift the cab a little with the jack. By the way, you should replace your radiator core support bushings too. If you don't, you may have problems with your fenders wanting to shift on you which will effect you door opening. Also, since you've gone this far, you might as well replace the bed pads. Hope that helped. Last edited by David Johnson; 04-15-2005 at 12:34 PM.

04-15-2005, 12:33 PM	#3
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	I'd also loosen or replace the rad support mounts also. Looks like I didn't read far enough. Also be prepared to cut the bolts off and replace them. I had to with 4 out of 6 on my GMC. __________________ 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 Last edited by JIMs70GMC; 04-15-2005 at 12:35 PM.

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04-15-2005, 12:53 PM	#4
fire235 Registered User Join Date: Oct 2004 Location: East Texas Posts: 76	Thanks for the info guys. Guess I'll get started replacing bushings now.

04-15-2005, 08:52 PM	#5
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	All the cabs that I have seen have the front cab mount bolts welded to the floor, (the large 9/16 diameter bolts). You may want to grind the welds so as to remove the bolts otherwise the cab will have to be lifted high enough to clear. Jim

04-16-2005, 02:16 AM	#7
David Johnson Registered User Join Date: Dec 2004 Location: Shawnee, OK Posts: 614



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