i'd be so lucky to have a shop doing this for a living. When I referred to "my shop" rather I meant the location I get my supplies from.
I'm unfortunately just a small time guy in his garage who builds t5's for my broke local mustang forum friends...lol I think I've just about covered all of california from LA to Orange County to Inland empire....I don't really charge much though, as it's just side cash for my projects...
You've got me on the tail shaft extension for the s10, I've neither done one, nor heard of that until now. Do you have any pictures?
as far as speedo gears go, I usually try and always put the yellow one inside, unless the customer has no plans for anything other than 3.27's at the most, then I'll leave the green one in. I believe I used yellow and speedo cable red for my 373's, and the yellow/white for my 2.73 (fox)/2.80 (66 coupe)...forget the tooth count off the top of my head...speedo's were all fairly accurate.
The strangest t5 I put together, or rather strangest combo was for a guy in big bear running a 66 plymouth barracuda with a slant six. He was also installing a turbo kit, and had adapted the late model ford coil pack as his ignition, and had attached a metal gear to the front of his engine for the crankshaft sensor. Fun little car, but I think I've long since lost the pictures. He just ran a fox bell and standard wc mustang t5, and it lined up with his trans tunnel, if I remember pretty much spot on.
-66 mustang 5.0 custom comp cam roller, edelbrock performer heads, airgap/670 carb,holley blue pump,2005 mustang discs, t5z trans with clutch cable, 130 amp taurus alt. 1996 explorer 373 8.8 rear, open tracker roller suspension, solid adj strut rods and more
-72 maverick 302 undergoing FULL resto