Anyone else have similar issue when replacing body mounts - The 1947 - Present Chevrolet & GMC Truck Message Board Network

conoco · 03-31-2021, 04:48 PM

So I am replacing my body mounts, first I got the poly and once I got them on I just pictured how rough the ride would be. So I scrapped the and bought the rubber body mounts. I just put them on yesterday and the passenger side body lines were about 1/2 off. They were good on the drivers side but way off on passengers. I messed around for 3 hours trying to figure out what was going on. I then compared the new rubber mount to the old one and the new one is about a half inch taller and more narrow. I understand the old one could have compressed over the years but why was the driver side good with the new ones in. So I took the new rear mount out and put the old one back in (just one the passenger side rear. Now all my body line match up again. The old ones also had shims but I don't need them now which is weird. The old mount isn't bad I just wanted everything new. I just dont understand why only that one seems to mess everything up. Is my cab bent?

Even if I shined the drivers side it would take like a full inch of shims to make the body line even on the passengers side. Just scratching my head. Like I said everything is strait now it just sucks that all the mounts are new except for that rear passengers side. Anyone else have something similar to this.

My truck is a k20 also so it uses the big mounts in the rear.

Jim Boy · 03-31-2021, 05:00 PM

Lot of for nothing eh. Just because you ordered the mounts for your truck doesn't mean that is what you got. If it was me I'd try to get in touch with some manufacturers and ask them the height of their mounts. Yours look close but not exact. That's all I got brother. Good luck, and things will get better.

72c20customcamper · 03-31-2021, 05:55 PM

Did you compare the drivers mounts to the passenger side one? If they are the same something is out of whack

**pjmoreland** · 03-31-2021, 08:00 PM

My new C10 mounts were quite a bit taller than the originals.

**BigBird05** · 03-31-2021, 09:59 PM

Have you measured them distance from the frame mounts the the ground? Start there. Measure all off them.

03-31-2021, 04:48 PM	#1
conoco Registered User Join Date: Nov 2019 Location: Eagle River Alaska Posts: 320	Anyone else have similar issue when replacing body mounts So I am replacing my body mounts, first I got the poly and once I got them on I just pictured how rough the ride would be. So I scrapped the and bought the rubber body mounts. I just put them on yesterday and the passenger side body lines were about 1/2 off. They were good on the drivers side but way off on passengers. I messed around for 3 hours trying to figure out what was going on. I then compared the new rubber mount to the old one and the new one is about a half inch taller and more narrow. I understand the old one could have compressed over the years but why was the driver side good with the new ones in. So I took the new rear mount out and put the old one back in (just one the passenger side rear. Now all my body line match up again. The old ones also had shims but I don't need them now which is weird. The old mount isn't bad I just wanted everything new. I just dont understand why only that one seems to mess everything up. Is my cab bent? Even if I shined the drivers side it would take like a full inch of shims to make the body line even on the passengers side. Just scratching my head. Like I said everything is strait now it just sucks that all the mounts are new except for that rear passengers side. Anyone else have something similar to this. My truck is a k20 also so it uses the big mounts in the rear. Attached Images

03-31-2021, 05:00 PM	#2
Jim Boy Registered User Join Date: Nov 2017 Location: Wasaga Beach Ontario Canada Posts: 197	Re: Anyone else have similar issue when replacing body mounts Lot of for nothing eh. Just because you ordered the mounts for your truck doesn't mean that is what you got. If it was me I'd try to get in touch with some manufacturers and ask them the height of their mounts. Yours look close but not exact. That's all I got brother. Good luck, and things will get better.

03-31-2021, 05:55 PM	#3
72c20customcamper Registered User Join Date: Jul 2018 Location: Catskill Mountains,NY Posts: 8,141	Re: Anyone else have similar issue when replacing body mounts Did you compare the drivers mounts to the passenger side one? If they are the same something is out of whack __________________ Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary.

03-31-2021, 08:00 PM	#4
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,321	Re: Anyone else have similar issue when replacing body mounts My new C10 mounts were quite a bit taller than the originals. Attached Images

03-31-2021, 09:59 PM	#5
BigBird05 Senior Member Join Date: Aug 2019 Location: Cheraw Posts: 1,305	Re: Anyone else have similar issue when replacing body mounts Have you measured them distance from the frame mounts the the ground? Start there. Measure all off them.



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