Big block motor mount confusion - The 1947 - Present Chevrolet & GMC Truck Message Board Network

St Cloud Rustoms · 08-27-2019, 07:12 PM

63 GMC 1000

Well, I thought I was getting the right 73-87 clamshell mounts, but maybe I got the wrong ones. I've seen some posts about having to add a 1" spacer under the frame side on some, but I thought I was getting the right ones that don't need the spacer. Can anyone tell where I went wrong?

I also have a set of small block mounts, but putting them up to the frame make it look like I would need a 1" spacer as well? I'm kinda confused.

08-27-2019, 07:12 PM	#1
St Cloud Rustoms Registered User Join Date: Jan 2019 Location: Saint Cloud, FL Posts: 14	Big block motor mount confusion 63 GMC 1000 Well, I thought I was getting the right 73-87 clamshell mounts, but maybe I got the wrong ones. I've seen some posts about having to add a 1" spacer under the frame side on some, but I thought I was getting the right ones that don't need the spacer. Can anyone tell where I went wrong? I also have a set of small block mounts, but putting them up to the frame make it look like I would need a 1" spacer as well? I'm kinda confused. Attached Images

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