[JERRY2KONE]

Not sure if those are truly Ultramaxxed gears. Looking at that picture those look more like RC4WD gears. They tried to copy Ultramaxxed gears, but they were not quite the same high quality. Anyway they will fit into the original 3906 tranny. The RC4WD gears work fine, but their full set of gears sold for $100 retail. I would question the seller for sure.

I wish that I could shoot him an email to ask if he knows for sure what gears these are, but I have not had an EBay account for quite some time(too much hassles and hacker). Looking at the title of the sale he is not sure ether. He lists Unlimited Engineering SuperMaxx, TMaxx, EMaxx, & GorillaMaxx. These gears were made specifically for the 3906 EMaxx tranny, and will not fit into a TMaxx tranny or any other version of the EMaxx tranny's. Honestly looking closer at his picture those do not look like Ultramaxxed gears. I have both, plus a set of titanium gears, and they all have their own atributes that distinguishes who made them. I could be wrong, but you posted up in here looking for info. I would not purchase them without clarifying details on how he is identifying these gears.