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Builds and Journals This is where the magic happens. Photograph & document your GMC build progress for posterity.
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  #11  
Old November 21st, 2020, 02:40 PM
Donny Donny is offline
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Default Re: Usaf 1970 wm-80

I do have a full set of 478 pistons brand new in the box if you’re interested
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  #12  
Old November 21st, 2020, 02:50 PM
James James is offline
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Default Re: Usaf 1970 wm-80

I performed a web search on the company name and it look like they had change it again. By tracing the phone number it look like they are at this location


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Hope this is the one. Good luck.
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  #13  
Old November 22nd, 2020, 03:40 AM
SgtSnuffy SgtSnuffy is offline
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Default Re: Usaf 1970 wm-80

Thanks everyone for the help! I sent you a PM Donny.
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  #14  
Old November 23rd, 2020, 10:56 PM
SgtSnuffy SgtSnuffy is offline
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Default Re: Usaf 1970 wm-80

I contacted All Marine Gears, they could not find anything. Suggested I call Pacific Torque and they found it to be a MT-40.
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  #15  
Old November 23rd, 2020, 11:29 PM
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Funky61 Funky61 is offline
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Default Re: Usaf 1970 wm-80

They still have manuals for them on eBay



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  #16  
Old November 27th, 2020, 10:20 PM
BobBray BobBray is offline
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Default Re: Usaf 1970 wm-80

Air Force had a lot of those. That transmission is probably an MT-40 or 41. Keep checking Ebay, pistons and even complete 478's do show up from time to time.
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  #17  
Old December 1st, 2020, 10:19 PM
SgtSnuffy SgtSnuffy is offline
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Default Re: Usaf 1970 wm-80

Keeping an eye on eBay, would not mind a complete engine. I found a truck in Montana with a 478. But I know how that would go, I would not have the heart to pull the motor and would have two trucks still needing a 478. Wish I had some good updates for everyone. Just kind of stuck until I get the fire back in her. Thanks again for everyone's support.
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