You can also use o-rings HPI has got them, with an 8mm od

These?

http://www2.towerhobbies.com/cgi-bin...?&I=LXDLB6&P=7

That looks like the ones. They work well to keep the dog bones in the cups better.

The stock REVO driveshaft will work, provided you are using the Gorillamaxx Tranny. You will need to mount the tranny towards the rear or the REVO - This a good thing as it improves the weight distribution. Then by using three driveshafts, obviously one being cut to join the inner two driveshaft provides for a perfect fit. I will take a couple of pics tomorrow to show how this is done.

Hey TraxxMaxx, how about those pics?