'65 MX trans

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Nov 29, 2004 | 08:39 PM

nealjpage

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From: Lincoln, NE

'65 MX trans

First of all, I'd call it an FMX, but the books at the transmission shop call it an MX or Cruise-o-Matic. It's definatly got the iron case.

Anyhoo, I've posted this on the general truck page, but figured I'd post it here, too. I have a 1965 f100 352 with the MX/FMX transmission. When I got the truck, the trans wasn't installed, so when I went to do so, I learned that the speedo drive is missing. Here's the pickle: I don't know what it looks like, so if I go boneyard hunting, it's gonna be hard to spot. My trans has a large threaded hole on the right side of the trailshaft (oddly enough, it sort of looks like a water pump) where I figure some sort of adapter threads in. If anyone knows what I'm talking about, do you know if its available aftermarket so I don't have to go lay in snow under a truck in a junkyard? Anyone have a pic or a diagram or something so I know what I'm looking for? Thanks fellas.

Nov 29, 2004 | 09:11 PM

85e150

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Look here:

http://www.bulkpart.com/fordid.html

What does your pan look like? Match to gasket shapes for your answer, I hope.

Nov 29, 2004 | 09:49 PM

nealjpage

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From: Lincoln, NE

the gasket and filter for the FMX looks close, except my filter has inlet holes on both ends of the filter, not just one side.

Nov 30, 2004 | 10:07 AM

286merc

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From: Southern New Hampshire

Cant help with your question but if/when the FMX dies you can replace it with a FE style C6.

Dec 1, 2004 | 08:44 AM

jowilker

Fleet Owner

Joined: Jun 1999

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From: Creedmoor, North Carolina

Scott, The 65 came with the C-O-M tranny of the FMX family of trannys, 50s vintage.

The hole on the right side is where the speedo cable/gear fit. The only trucks that you would have to go under would be ones with the green dot selector at the wheel. I'm not sure when the C-O-M was droped but I know 65-67 would have then for the factory installed auto.

John

Dec 1, 2004 | 11:13 AM

nealjpage

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From: Lincoln, NE

oddly enough, all the trucks i've seen in junk yards are either missing their steering column, or, if that's there, the steering indicator. strange, eh?

Dec 2, 2004 | 06:52 AM

jowilker

Fleet Owner

Joined: Jun 1999

Posts: 24,552

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From: Creedmoor, North Carolina

If the end that goes into the tranny is all that you need, you can look for cars of that era as well.

I had a truck with the C-O-M and I sold everything together. If I ever get around to reassembling it, I have a C6 ready to go in it's place.

John

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Dec 9, 2004 | 11:27 AM

nealjpage

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From: Lincoln, NE

Problem solved! Went to a tranny shop and explained what I needed. He hemmed and hawed for a minute, talked to the old-timer that worked there, and told me to wait. About 10 minutes later he came out with a part that I knew had to be right. There's a steel gear with a shaft that goes through a bushing that is threaded on both ends. One end goes into the tailshaft and the other end is threaded onto the speedo cable. He told me that early C6s used the same setup as the FMX. He couldn't answer this question though: is there some sort of o-ring that goes on any of this stuff to keep the tranny oil in? Or is the bushing pipe threaded to seal the transmission and the speedo cable the seal on that side?