[jhautz]

Brian,

If you are worried about the motor mount it might be easier than you think. The DM1 I did uses the same center diff uprights as the Jammin Buggy so the RCM Jammin Buggy motor mount was a direct drop in fit. My suspicion is that the GTP is probably the same upright because it uses the same 2 speed as the DM1 so it only stands to logic they would use the same upright.

Its possible I'm wrong, I haven't checked any part numbers or anything for the gtp, but I think you have a great shot at it being a simple solution. Do some part number research on the ofna website.

And if you are looking for a simple 2 speed solution check out Mikes 2 speed pinion adapter. He now has a whole range of pinion gears available for it. I got a setup from him and it is solid and really simple setup. It should work for your application perfectly. I was also thinking about playing around and seeing if Mike could make me some "special" pinion gears for the 2 speed adapter of his. I was thinking I wanted to get a 32/37 pinion setup to use with the Ofna 44/49 2 speed spur gears on the 2 speed tranny. I was going to target 100+ as a goof around setup on the DM1 just to see if I could do it.

I'm sure he could make (or get made) any tooth count we need. It might cost a few $ to get it, but If we both want a set we could split the setup costs associated with any special gears.