Gearbox ID

[tim.sanderson]

Hi all. I've been reading these forums for a while (mostly vintage kyosho & yokomo sections), but just signed up as a member today.
A few of us on another forum have been trying to id this kyosho gearbox. I thought the answer might be found here.
One theory is it's an incorrectly assembled Ultima gearbox...
Any ideas?

gearbox2.jpg (37.57 KiB) Viewed 751 times

gearbox2.jpg (37.57 KiB) Viewed 751 times

[Coelacanth]

I'm guessing incorrectly assembled. Although I'm only using an Optima gearbox as comparison (and going from memory), it looks like some screws would not be going into the proper screw-holes. It looks like the large motor side-plate is on the wrong side. I'd venture that the gearbox should be bolted onto the other side of that side-plate. Don't quote me on that, though.

[jwscab]

it looks to me like someone tried to assemble the gearbox in a mirror fashion, either to run it in a 'front drive' scenario, or with a mid motor configuration.

the motor plate looks reversible, and those standoffs look like they might be hand made.

[tim.sanderson]

...or with a mid motor configuration.

That was one of my initial thoughts, too.

[walfre]

It's the stock Ultima gearbox to use midmounted motor.