Originally Posted by
jeff jenkins
Thought I would throw out a question I have been thinking about. I believe on my ERYX 2.0 or was it the 3.0 I forget but the front spool outdrives did not use blades . The pin on the driveshaft was larger. My question is why the change?? The dcj driveshafts have a lot of slop on there own and the rate the blades go out it produces even more slop . I am going to be trying other blades like the X-ray ones but right now I am using arc blades as the serpent ones are brittle like the ball cups . But it was just a thought of mine. Personally I liked it better with no blades.
It was on the 1.0/2.0 that had the steel outdrives that didn't use pin cushions. The pins where/are the same size as the existing DJC though and not any larger. The pins would eventually hog the outdrives out and the pins themselves where succeptable to chipping and the the pins where/are glued in and virtually impossible to replace. I managed to get them out a few times but its quite difficult. The xray blades are on a larger ball so you'll have to be creative to take the slop out because of the size difference. The xray because of being larger will not seat properly in the outdrive if you try to run it out of the package. Cars like the ARC and the Yokomo use the same size blades. The ARC DJC will work in a pinch as a replacement for the Serpent DJC, and I personally think they may be a better product in that application. just be aware of the pin location for the hex and also the stub should be cut back to avoid additional suspension breakage snagging boards. Serpent no longer makes the outdrives that use no blades, but they would be a straight replacement as the lock pin locations are still the same as the new Serpent outdrives.
The Xray diff will fit with some slight modification, but as Dan said, you have to run the rest of the Xray axles as the ball diameter is larger on the Xray and if you try to run the Serpent axles in the Xray diff the axle will throw to the big side or rattle around in the outdrive. Also, I think the Xray is one tooth different in size compared to the Serpent.
The internal gears will fit between the two diffs but the big gear that sits it the big part of the diff case may require some filing on the edge as the gear sits into sort of a pocket.