Greetings from the states!
From what I can find, the Mustang Ecoboost is still a fairly expensive car over in the UK, but here in the US, they've gotten affordable. More importantly, the MT-82 transmissions from crashed Mustangs are pretty inexpensive, about $700-800 for a six-speed that bolts right up to any Duratec if you also use the rear-sump Ecoboost Mustang oil pan. It's considerably stronger than the MX-5/RX-8 transmissions, and can be made to shift quite nicely with a little TLC. The only down side is the widely-spaced gear ratios are well suited for a car weighing 3500 lb (or perhaps a small pickup truck or van), not one weighing 2400 lb or less.
Here's why I'm bugging you UK folk about it. I've found a Ford spec sheet that shows all the same ratios for the European-spec Ecoboost Mustang, except sixth gear is a more useful 0.834:1 instead of the flyover-country-crossing 0.70:1 we get on the cars here in the US. I have read all the service material I can find for the MT-82, and the Euro sixth gear should swap right in to the US-spec box, which would make me happy. I have worked out that the counter/cluster shaft gear must be 43 teeth and the main/output shaft gear must be 26 teeth. (Long story on how I got there, but the math works.) I've seen many listings for 44/23 and 41/20 pairs which seem to be for Transits or maybe Land Rovers, but none for the Mustang.
I have tried extensively to find any parts listings or online parts sellers that can ID the gears, and have come up dry. (I haven't managed to come up with a valid VIN that can be used to search on, either. Pretty much every US car-for-sale listing includes the VIN, but I did not find that to be the case when I went looking at UK sellers.) I found a UK-based transmission parts specialist on Ebay and corresponded with them, but they do not have the correct ratios.
Does anyone here have a way to get those part numbers, or know where I could successfully buy the gears from across an ocean?
Thanks for any help!
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