C6 transmssion

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Apr 28, 2022 | 01:56 PM

pkunzl

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C6 transmssion

I have a 77 F350 with a carbureted 460 and a C6 transmission. I would like to know if I can replace that transmission with another C6 out of an 88 F350 with a fuel injected 460. I just don't know if there is any electrical/computer type issues with the 88 transmission.

Apr 28, 2022 | 02:01 PM

dustyroad

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From: NE Ohio

There should not be any issues.
it is a vacuum controlled transmission.
so no electronics, 460 to 460 so no issues there.
should be a drop in replacement.

Apr 28, 2022 | 02:25 PM

moose4x4

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2WD or 4WD there are some differences in tailshaft.

Apr 28, 2022 | 02:47 PM

dustyroad

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From: NE Ohio

Quote:

Originally Posted by moose4x4

2WD or 4WD there are some differences in tailshaft.

good catch, didn't cross my mind.

Apr 28, 2022 | 03:43 PM

ivsamhain

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From: CA

It’s a 77 so assuming 2wd.

Apr 29, 2022 | 05:06 PM

pkunzl

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C6 transmission

Ya I didn't think to mention it is 2WD, I'm new to the forum and appreciate you help, I will try to be more specific in future posts. I will be doing the swap later next week.

Thanks Paul

Apr 29, 2022 | 07:46 PM

GLR

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From: NY and VA

You might want to change the front seal in the "new" transmission.And also the filter. Maybe also drop the trans pan first on the old one to see if there are any metallic particles that might have been floating around. Or just play it safe and flush out the cooler lines before hooking to the new trans.