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  #1  
Old February 26th, 2024, 01:58 PM
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Kessler Kessler is offline
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Default 64 gmc 4000

Good Morning! I have a conundrum with my 64 GMC 4000 cab mounted on a 65 Chevy frame. Alignment shop says I need new upper control arms and driver's side lower control arm bearing to get a good alignment. How do I figure out if existing control arms are 64 GMC 4000 or 65 Chevy arms? Will they interchange? Thinking aftermarket, but don't want to order and then return. Anybody? Thank You
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  #2  
Old February 27th, 2024, 01:43 PM
George Bongert George Bongert is offline
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Default Re: 64 gmc 4000

Quote:
Originally Posted by Kessler View Post
Good Morning! I have a conundrum with my 64 GMC 4000 cab mounted on a 65 Chevy frame. Alignment shop says I need new upper control arms and driver's side lower control arm bearing to get a good alignment. How do I figure out if existing control arms are 64 GMC 4000 or 65 Chevy arms? Will they interchange? Thinking aftermarket, but don't want to order and then return. Anybody? Thank You
Greetings, Kessler!

Since you have mounted a GMC 4000 cab on a 1965 Chevy frame, I would go with the parts for the Chevy frame. I'm not sure when GMC changed their (front) suspension from torsion bars to coil springs, so to be on the safe side, go with the Chevy frame parts.
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Old February 27th, 2024, 02:36 PM
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ilvracn ilvracn is offline
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Default Re: 64 gmc 4000

parts are readily available, you can buy the control arm shaft with the bushings from orielys. as well as ball joints. cheaper than buying whole control arm.
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Old February 27th, 2024, 09:20 PM
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Kessler Kessler is offline
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Default Re: 64 gmc 4000

George Bongert and ilvracn....thanks for the info! Will check with OReillys for parts availability. thanks for getting back to me...wanna be ready for spring!
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  #5  
Old February 28th, 2024, 06:35 AM
BobBray BobBray is offline
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Default Re: 64 gmc 4000

A 1964 GMC 4000 series is a 1.5 ton truck, they had leaf springs and an I-bean front axle. No control arms. You need parts for a 1965 Chevy. Good news is everything for those Chevy trucks is readily available and not expensive.
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