Shift kit for FMX transmission?

[Must69ang]

Anyone have experience with shift-kits for an FMX transmission? The guy rebuilding my tranny was unsure if they made them. I Googled FMX shift kit and apparently they exist. I just don't know very much about trannies.

I don't want anything mega-nuts, I just want strong chirps into 2nd and 3rd when winding out the gears. Will probably go with something like an 1800 stall converter (and follow the advice of my tranny guy)

[Steven Harris]

Not much out there on the FMX.

It was replaced by the C4 and C6 and kind of fell by the wayside.

Still it is a great and durable transmission. I have no research to pass on but let us know what you come up with.

[Mustangmike]

You can try Summit Racing. I thought I saw shift kits on there site for the FMX tranny. I think they are made by a company called Transgo. But Steve is correct. Ford phased out the heavy duty FMX tranny way back when.

[Must69ang]

Thanks, I found the kit on Summit's site. Are shift kits adjustable? That is, can the firmness of the shift be adjusted and if so how is that done? Different springs or a some type of adjustment screws, etc.?

[Mustangmike]

That is great news! However, this is where I gracefully bow out. I have never owned an automatic car my entire life and don't think I even know how to drive one (LOL). Your question lies in uncharted territory for me. Possibly another member can chime in or I believe Summit has a technical line who can assist with those type of questions.

[JTS71 Mach1]

You need to go to an "old" transmission shop. One that's been there since the 60's then find the roughest looking mechanic they have, and talk to him. Back in the day they modified these transmission by drilling different holes in the plates in the valve bodies etc, since there weren't readily available shift kits. It will take some looking but when you find the right guy you will be blown away by what he can do with that FMX. It will stand just damn near anything you can throw at it if built correctly. Good luck. JTS 71 Mach1

[Mustangmike]

Great advice...and based on it, I would highly recommend tracking down the guy who can perform that type of work. It sounds like the end result would be worth every penney spent!!

[Steven Harris]

I have never owned an automatic car my entire life and don't think I even know how to drive one (LOL).

I remember the first time I had to drive an automatic (I was raised in Africa) I had NO IDEA! It just did not make sense!

[Mustangmike]

I have never owned an automatic car my entire life and don't think I even know how to drive one (LOL).

I remember the first time I had to drive an automatic (I was raised in Africa) I had NO IDEA! It just did not make sense!

As strange as it sounds it is definately awkward for me. The few times I have driven automatic I always felt more comfortable using both feet, left brake and right accelerator pedal. And I always feel I am forgetting to do something. Unfortunately, manual transmission cars are becoming few and far these days. When we were looking for a car for my wife, 9 out 10 were automatic.

[Must69ang]

Yeah, I agree...When I switch between the '82 GT 4-speed and the 69 automatic I'm always reaching for the clutch. Last year I was just about to convert the Mach I to a 5 speed (via a Bruce Couture kit) when I decided instead to rebuild my wife's GS 455 engine. Plus, spring was getting close and I figured I'd be working out the kinks in the switch oveer to manual for a month or so and didn't really feel like doing that at the time. Someday I may switch this to a manual, but for now the driving I do is mostly long mountain road trips and the automatic suits me fine for that for now.