Im turning new sleeves there, cowboy. We only need to determine if they should be hardened. Anybody know?

edit-aidan beat me

Remind me tomorrow after work and I'll grab the piece of sleeve I had to cut off to make the release bearing work and I'll hardness test it at work. It cut off pretty easy with the sawsall so if its more than a light case on cheese grade steel I'd be surprised.

Gracias senior.

Yeah, it was easy to drill through, so obviously not something crazy hard.

Looking at new input shafts.

Ford Mustang Borg Warner T5 World Class Transmission 9 1 4 Input Shaft Kit | eBay

I guess the fox body had a shorter TOB sleeve. And a shorter bearing retainer.

Does anyone know if the aftermarket kits are good? Or should I be looking for OEM stuff.

If you're going to buy a new one you probably should get a 1 piece steel one.

A 1 piece bearing retainer?

Just got off the phone with Paul at Modern Driveline. Very helpful, learned a bit.

The 90-93 input shaft bearing retainers were 2 piece, like the 99-04. But both the casting and the sleeve were shorter. He can supply the new input shaft, shim kit, and everything else. I opted to skip out on the bearing retainer for now, and see if I can make my longer one fit.

The new shaft + bearing + shim kit (and they press the bearing on for you) was $90+shipping. Not too bad. After this I will basically have a 90-93 trans, but with an electronic speedo output. Which is perfect.

The Modern Driveline guys have always been awesome to deal with. I still have one of their complete T5 install kits for a 64-68 smallblock Mustang sitting in my garage gathering dust.

I find it hard to believe Ford would change the entire tail shaft housing for the speedo sender, but I guess stranger things have happened. If one wanted to convert from a mechanical to electrical drive what all would be involved? Just the housing or are we talking about replacing a bunch of inards as well?

I'm trying to figure out if my -246 T5 (3.35-1.99-1.33-1.00-0.68) might actually be useful should I blow my 6 speed.

All 94-04 mustangs had an electronic speedo output. In 99 it is physically different inside the transmission. One if the links in the OP explains it.

You and I essentially have the same gearbox.

double post

:idea: Now I get it!

Now I need to decide if I want to try to adapt the trans to the Miata, or just sell it all as a complete kit to some classic Mustang guy

put it in your mustang? :dunno:

Ain't got no Mustang no mo' but I've got thousands of dollars worth of new, unused parts for one. I should probably try to sell them and make my money back. :facepalm:

You should probably sell all that stuff and put that money to better use. Like parts for your miata.

FTFY

Lol. My intention was to someday buy another cheap rust free California inline 6 equipped 64 or 65 chassis and use my parts to build that up. Unfortunately it's not 2001 anymore and most of those finds have dried up.

The big swap meet out at the Marina airport is on Oct 1st. I'd be out there selling stuff except thats the same weekend as M@MRLS :sad2:

Don't give up on your dreams.

But yeah, these non 90-93 transmissions are a dime a dozen. Input shaft swap and you are good to go.

Got some more T5 work done. New input shaft showed up, still need to order new input and output seals. The input shaft swap was stupid easy.

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Did some math, someone tell me what I screwed up.

Miata input shaft to bellhousing flange offset (from tim): .410"
Length from input shaft tip to T5 flange (on a shorter input shaft box): 7.189"
3/8 transmission flange (1/2" flange, milled down an 1/8th for flatness): .375"

So the total miata bellhousing needed is: 7.189+.410-.375 = 7.224"

Wow, thats really not a lot of bellhousing lol.