Stay tuned

[Jason@SportsCar]

Originally Posted by CrankyOldMan

Wow, I'm surprised to hear that there's so much involved in fitting those gears. The C-56 gears went in without much fuss, but I'm stalled on funding for replacement parts and the LSD.

It is odd, these were supposedly built for the C56. Are you pulling parts out of a C56 A or B? Could be the difference.

Turns out the gear itself is not to wide, but the collar at its base, that combined with the Yaris synchro made it bind up. And it is only the 3rd and 4th on the input side that is the challenge. They take a little bit off the collar and install the Celica/MR-S synchro its supposed to fit.

Fingers crossed.

[racerb]

Back in my Honda racing days this guy was the man for alternate gear sets, he can probebly help you out if need be. He is a multi-time SCCA Champ and really knows a thing or two about gearboxes.
http://www.housemanautosport.com/

racerb

[Jason@SportsCar]

Originally Posted by racerb

Back in my Honda racing days this guy was the man for alternate gear sets, he can probebly help you out if need be. He is a multi-time SCCA Champ and really knows a thing or two about gearboxes.
http://www.housemanautosport.com/

racerb

He was the first person I talked to when we started looking for gears two years ago. He was willing to make a custom final drive, but we found the xB gear fit at a fraction of the cost. He had no interest in doing the dog engagement trans that I wanted.

[CrankyOldMan]

Originally Posted by Jason@SportsCar

It is odd, these were supposedly built for the C56. Are you pulling parts out of a C56 A or B? Could be the difference.

Turns out the gear itself is not to wide, but the collar at its base, that combined with the Yaris synchro made it bind up. And it is only the 3rd and 4th on the input side that is the challenge. They take a little bit off the collar and install the Celica/MR-S synchro its supposed to fit.

Fingers crossed.

I'm afraid you've got me stumped on that one. I didn't realize there were two C56 variants, or at least that there were significant internal differences between the front and rear mounted versions.

[racerb]

Originally Posted by CrankyOldMan

I'm afraid you've got me stumped on that one. I didn't realize there were two C56 variants, or at least that there were significant internal differences between the front and rear mounted versions.

Toyota must have a big range of different gearbox versions, my S-53 is fairly common, but I ended up with a JDM box and can't find syncros or shims to fit it! Would love to find an alternate final drive, the 4.18 is just not working for our longer tracks here in the East.

racerb

[Jason@SportsCar]

Originally Posted by CrankyOldMan

I'm afraid you've got me stumped on that one. I didn't realize there were two C56 variants, or at least that there were significant internal differences between the front and rear mounted versions.

C56A open diff
C56B LSD

You may actually have the same problem we did and not know it yet if you have not put it back together. You wont know until you jam it all in the case and measure the drag when you spin it.