6 gear tranny with stealth spur?

[muck]

i am trying to help a friend out. He picked up 2 rc10s on his local CL last night. One appears to be the CF rc10. It has the graphite chassis with the AE etching and andys arms.
what i am stuck on is the tranny.
It looks like the big 6 gear housing but has 2 screws in the spur gear that i think is the stealth spur set up.
Is that possible?
the car on the left is the one i am questioning.

[Charlie don't surf]

That purple one is the earliest of the Edingers

[muck]

how can you tell?

[Eau Rouge]

It's VERY light gold anodizing. Nice find.

And no, you can't bolt a spur gear to a 6-gear tranny. The differential is out the outside. The car will essentially be a solid axle and probably won't turn very well. Not sure why someone would do that intentionally.

The rear shocks on the graphite also belong on the gold tub and vise versa.

[muck]

It's VERY light gold anodizing. Nice find.

And no, you can't bolt a spur gear to a 6-gear tranny. The differential is out the outside. The car will essentially be a solid axle and probably won't turn very well. Not sure why someone would do that intentionally.

the other pic i had on it from the CL listing showed 2 screws in the spur. Could they have installed the stealth gearing in that case then?
I took the rc10 i had apart with the 6 gear tranny and i agree, i am not sure how it would work since they are split inside..

thanks

[Eau Rouge]

the other pic i had on it from the CL listing showed 2 screws in the spur. Could they have installed the stealth gearing in that case then?

Nope. IMO, there is no way that gearbox comes close to functioning properly.

[Russ Winn]

Could it be one of those old diff pinning kits? I've never used one, so I don't know what it looks like installed.

[Eau Rouge]

The diff pinning kits only use set screws in the diff plates to lock the diff rings to the diff hubs, and nothing else. It would still have balls in it and be spinning free like a diff. It wouldn't look any different than a standard 6-gear diff other than the tiny 4-40 set screw in the outer diff hub.

[muck]

The diff pinning kits only use set screws in the diff plates to lock the diff rings to the diff hubs, and nothing else. It would still have balls in it and be spinning free like a diff. It wouldn't look any different than a standard 6-gear diff other than the tiny 4-40 set screw in the outer diff hub.

well he said the tranny moves. Just not sure if it has diff action. He is out.
I wonder if some one just stuffed a b3 spur set up on it to lock it in.

[scr8p]

if i had to guess, someone drilled 2 holes in the inner hub and ran screws through the gear and into it. no matter what they did or how they did it, it's not right.

[muck]

if i had to guess, someone drilled 2 holes in the inner hub and ran screws through the gear and into it. no matter what they did or how they did it, it's not right.

guess i will see next week. These are headed my way.. WOOT WOOT

[muck]

ok, an update.
The screws are set into the inner pad. The spring is seated against the inner pad in the middle of the spur gear. It obviously is not right but did allow the tranny to have diff action.

On another note, these are now mine. My friend sent these to me as a xmas gift! I want to make one into a runner, just not sure which one.. more to come
thanks

[binjaloo]

I saw an RC10 "The Winning Edge" Video where Jim Halsey is showing 2 screws in the spur gear. Not sure if that was for the 6 gear tranny.