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I'll third (or fourth?) The recommendation to stick with the stock parts when you can. The metal gears are ok..... as a trans specialist you should know about gear wear with mismatched materials. The nylon of the stock parts has really great wear characteristics in this application, where aluminum gears will flake and wear prematurely. So just keep an eye on it, and you should be running some kind of lubrication on the aluminum/steel gears. Probably something like a light wipe with lithum grease would be about perfect.

You really should'nt run any lubrication in a stealth gearbox, it always ends up contaminating the silicon grease on the diff balls.

So far so good on all metal gears. Has a neat whine to it when you punch it like a supercharger or a gear driven camshaft. I've broken other things racing and running it around, but even with the slipper clutch being not too slippy and getting good grip from the tires, no gear issues even with the same trans case as before. Maybe in a bit I'll tear it down an inspect but for the moment I'm just enjoying it being reliable.

BooGTS wrote: ↑Fri Jan 25, 2019 1:37 pm So far so good on all metal gears. Has a neat whine to it when you punch it like a supercharger or a gear driven camshaft. I've broken other things racing and running it around, but even with the slipper clutch being not too slippy and getting good grip from the tires, no gear issues even with the same trans case as before. Maybe in a bit I'll tear it down an inspect but for the moment I'm just enjoying it being reliable.

Any updates bud.

About a month ago after running it really hard since my post about it, a tooth chipped on the idler gear. Going to go back to plastic gears but it was a fun experiment. Made it sound less like a toy and like it had a supercharger.

I think if I had kept the plastic idler gear everything would have been fine. It was the diff gear that was wearing most anyway for the plastic gears.

Keep in mind I think my trans case was fatigued (kept eating plastic gears) so it might have been that as much as anything that did the steel gears in.

Got a new case and everything for the rebuild. Part of the reason for trying this was I knew it wasn't like I was going to ruin a good stealth tranny.