Double Cone 3rd Gear Differences MM6 / MN12
#1
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These carry the same tooth count. Why do they carry a separate part number? What am I overlooking?
There's a bevel of the gear teeth on the MN12 3rd gear at the teeth edge nearest the synchro. There are slight differences in the non-critical surfaces such as the additional groove on the non-synchro end of the gear. I don't see those as critical. Anything else I checked was within 3 or 4 thousandths height.
![](http://img200.imageshack.us/img200/848/pic04232011001edit.jpg)
![](http://img199.imageshack.us/img199/1751/pic04232011002edit.jpg)
![](http://img844.imageshack.us/img844/3631/pic04232011003edit.jpg)
There's a bevel of the gear teeth on the MN12 3rd gear at the teeth edge nearest the synchro. There are slight differences in the non-critical surfaces such as the additional groove on the non-synchro end of the gear. I don't see those as critical. Anything else I checked was within 3 or 4 thousandths height.
![](http://img200.imageshack.us/img200/848/pic04232011001edit.jpg)
![](http://img199.imageshack.us/img199/1751/pic04232011002edit.jpg)
![](http://img844.imageshack.us/img844/3631/pic04232011003edit.jpg)
![](http://img685.imageshack.us/img685/7884/pic04232011004edit.jpg)