i found this in a different forum and I thought I could share this to our members thanks to eric173
Okay guys, all done! Here are some pics. most are self explanatory. Here's a few tidbits of info. I made note of the way the bottom gear would rotate when the e-maxx moves forward. I was careful to screw the drive dog to the bottom gear so that the forward slack would be taken up. There won't be any stress on it this way, and no slack in the tranny! I used a 4mm tamiya shoulder bolt, nut, and washers, as a tranny plug where the shift lever use to exit the tranny. 3mm tamiya hardware replaces the screw pin that went thru the shifting fork. 6x12 plastic clod bushings ( 3 ) were used as spacers on the bottom shaft. ( 2 ) .5 mm washers and ( 9 ) 5x8 oilite bushings take up the slack on the top shaft and hold the case bearing in place. Believe it or not, those 9 oilites weigh far less than the small top gear I removed from the top shaft. Everything was spaced to the exact original specs as measured with my digital calipers. I found it funny I had just what I needed to make it come out right, Yaaa! on with the pics:
1. Here are all the parts scrubbed clean and ready to assemble.
2. Lower gear and drive dog screwed together with tamiya hardware.
3. From the back
4. side view.... sweet huh?
5. Tranny is much more simple now (as is the truck in general)
6. Again...
7. Again, another view...
8. Finished product showing off my freshly stripped and polished motor plate :)
Hopefully this is of some help to you guys.