build a gmaxx and i need help

[JoFreak]

The Pro diffs are from the truggy version, means they have a smaller pinion gear.
Since you want to use a tranny you should use the non-pro diffs.
And yes, only drop the pinion and the diff into the hybrid bulks and you're good. But don't forget the shimming!
And get two of the Hot Bodies drive cups: C8068 (M4 set screws not included!).

Don't worry about everything beeing out of stock, just send mike a mail with a list of all the parts you need and he will get them all as fast as possible.

Regarding the FLM towers: just write that you need two towers into the list for Mike and you should get what you need. But I would assume there is only one tower per kit.

As for the shocks: I can only repeat myself, I would go for the ofna shocks again!
It is possible that Jamara is the official reseller for Sweden as well as for Germany maybe you can get those form a lokal shop if you want.

The screws for the bulkheads are included with the bulkheads, as are the screws for the shock towers included with the towers and the screws for the chassis are included in the G4-kit and so the story goes on and on...

I started with 40wt oil for the front shocks and 35wt in the back, 7k oil in the front and 3k oil in the rear diff. This should be a good starting point for you as well.