Got an Emaxx

[brushlessboy16]

What causes the diffs to fail, are the gears themselves weak or is it something else?

what about a rear spool?

[mkrusedc]

Originally Posted by brushlessboy16

What causes the diffs to fail, are the gears themselves weak or is it something else?

what about a rear spool?

The cup is plastic as is the case. This allows for flex and then the gears strip. The ring gear screws are too small. At a minimum get an aluminum diff cup, the modified ring gear with 3 mm screws and an aluminum diff case. This at least theorecticly corrects the flaws of the 3906 diff.

...or you could spool it.

[brushlessboy16]

Originally Posted by mkrusedc

The cup is plastic as is the case. This allows for flex and then the gears strip. The ring gear screws are too small. At a minimum get an aluminum diff cup, the modified ring gear with 3 mm screws and an aluminum diff case. This at least theorecticly corrects the flaws of the 3906 diff.

...or you could spool it.

ohh, thinking a diff for the front and rear spool.

[squeeforever]

Originally Posted by brushlessboy16

ohh, thinking a diff for the front and rear spool.

Don't go with a spool. It will make it handle like crap. Keeping one in a straight line is impossible.

i found the gears brake sometimes, but its usually the inside of the diff cups. The plastic holding the spider gears just give...

and i use a spool in the rear and the truck drives perfectly