Poly cab bushing question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gunslinger · 11-07-2011, 08:51 PM

Replaced the cab bushings with a Energy Suspension kit. The front cab bushings have a 5/16 gap from the top of the bushing to the bottom of the cab. None of the bolts are tight yet, just the weight of the cab sitting on them. Rear of cab is resting on bushing and radiator support is resting on bushing, just not the center bushing. Had to stop working on it tonight cause of the kids, but this is going to bug me all night. Will the bushings compress and all is good?

litew8 · 11-07-2011, 08:53 PM

Not energy but similar. Check my thread. Mine haven't been tightened yet.

gunslinger · 11-07-2011, 10:07 PM

After some research I found out there is a difference between 1/2 & 3/4 ton cab bushings. Anyone know the difference?

**special-K** · 11-08-2011, 08:17 AM

3/4t (also 1t & fwd) are taller. The mount on the frame is located lower. So,1/2t 2wd are by themselves.

turp mcspray · 11-08-2011, 10:37 AM

Don't tighten them down to remove the gap, or you will twist the cab, making your doors not fit. Add shims so you don't put stress on the cab.

litew8 · 11-08-2011, 04:31 PM

Mine is a 3/4 ton frame and some of my pictures I outlined the difference between 3/4 and 1/2 ton.

11-07-2011, 08:51 PM	#1
gunslinger Registered User Join Date: Mar 2003 Location: ventura, CA Posts: 24	Poly cab bushing question Replaced the cab bushings with a Energy Suspension kit. The front cab bushings have a 5/16 gap from the top of the bushing to the bottom of the cab. None of the bolts are tight yet, just the weight of the cab sitting on them. Rear of cab is resting on bushing and radiator support is resting on bushing, just not the center bushing. Had to stop working on it tonight cause of the kids, but this is going to bug me all night. Will the bushings compress and all is good?

11-07-2011, 08:53 PM	#2
litew8 Registered User Join Date: Jul 2011 Location: Des Moines, Iowa Posts: 3,016	Re: Poly cab bushing question Not energy but similar. Check my thread. Mine haven't been tightened yet. __________________ project: "my happy mess"

11-07-2011, 10:07 PM	#3
gunslinger Registered User Join Date: Mar 2003 Location: ventura, CA Posts: 24	Re: Poly cab bushing question After some research I found out there is a difference between 1/2 & 3/4 ton cab bushings. Anyone know the difference?

11-08-2011, 08:17 AM	#4
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Poly cab bushing question 3/4t (also 1t & fwd) are taller. The mount on the frame is located lower. So,1/2t 2wd are by themselves. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

11-08-2011, 10:37 AM	#5
turp mcspray Registered User Join Date: May 2007 Location: Rapid City South Dakota Posts: 2,359	Re: Poly cab bushing question Don't tighten them down to remove the gap, or you will twist the cab, making your doors not fit. Add shims so you don't put stress on the cab. __________________ Turp Mcspray New life for an old 2wd, farm blazer http://67-72chevytrucks.com/vboard/s...d.php?t=505987 My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=342299

11-08-2011, 04:31 PM	#6
litew8 Registered User Join Date: Jul 2011 Location: Des Moines, Iowa Posts: 3,016	Re: Poly cab bushing question Mine is a 3/4 ton frame and some of my pictures I outlined the difference between 3/4 and 1/2 ton. __________________ project: "my happy mess"

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