Thread: '65 GMC 1500 project. From the Netherlands
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Old January 8th, 2022, 05:36 PM
Prowbar Prowbar is offline
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Join Date: Dec 2020
Location: Friesland, the Netherlands
Truck: 1965 GMC 1500, 478 V6, SM420
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Default Re: '65 GMC 1500 project. From the Netherlands
Brought the SM420 home. This shifting pattern is much tighter, you get the impression that you're actually shifting instead of stirring in the soup...

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Took the shifter out and removed the top cover and inspection (PTO) cover. Drained the old fluid and cleaned the magnet on the bottom. All looks good, a much better tranny than the current one. Synchro's all look to be in good shape.

Hope to install this tranny soon. Should take care of the shifting issues. I think I'll keep this tranny installed. Rebuilding the other one might improve the synchros, but will cost a lot to rebuild and the shift forks are still worn, resulting in the sloppy shifting.

The guy I visited had a '63 305D. Those plaid covers are something else, arent they?
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