Bulletproof revo tranny?

[Trick440]

I'm look at this .. This is the output gear isn't it? And I just ordered a center diff., the center diff. replaces this output shaft, I think, does this mean I'm going to be burning up center diffs?

Any ideas on why this keeps happening?

It seems to happen after high speed runs, only other thing I can think of is my remote antenna is bent and its making the car twitch and sometimes stop a quick, but it didnt seem to do that right before it broke, but I could of just not noticed.

[jhautz]

I know plastic gears arent supposed to need grease, but if you say its happening after high speed runs, it could possibly be building up heat and softening the plastic allowing it to strip more easily. A light coat of grease on the gears might help prevent the friction that builds heat.

Dont know if this is actually the case, just a theory to throw out there.

Originally Posted by Trick440

I'm look at this .. This is the output gear isn't it? And I just ordered a center diff., the center diff. replaces this output shaft, I think, does this mean I'm going to be burning up center diffs?

Any ideas on why this keeps happening?

It seems to happen after high speed runs, only other thing I can think of is my remote antenna is bent and its making the car twitch and sometimes stop a quick, but it didnt seem to do that right before it broke, but I could of just not noticed.

if you are going to install the CD do the FOC while you have the tranny open, it will simplify things and locking the tranny in 2nd gear will help also

[Trick440]

Well good to here that it seems to get stronger with the FOC and diff.. I have them both ordered.

What else do you guys break, and should I consider upgrading? We mentioned the little pins on the gear shafts.....

How about the front and rear diffs?

Originally Posted by Trick440

Well good to here that it seems to get stronger with the FOC and diff.. I have them both ordered.

What else do you guys break, and should I consider upgrading? We mentioned the little pins on the gear shafts.....

How about the front and rear diffs?

this thread may help
http://www.rc-monster.com/forum/showthread.php?t=7441

[Trick440]

For the Diffs, just the cups like these? And this will help prevent the larger 'ring gear' gear from breaking teeth?
Large ring gear...


Diff cup...


Thanks guys.

[rschoi_75]

Originally Posted by Trick440

For the Diffs, just the cups like these? And this will help prevent the larger 'ring gear' gear from breaking teeth?
Large ring gear...


Diff cup...


Thanks guys.

As Brian mentioned, the cups will help the spider gears last longer. You still need to shim the pinion/ring gears.

On another note, you can use an alloy outer diff case as well, which will prolong the life of your ring/pinion gears:

I have read that if you take the innards out of the 16.8 volt emaxx diff. the fit right in the revo diff's and are much better

also the emaxx 3905 tranny is much stronger?....easy mod