Center driveshaft questions

[lincpimp]

Ran a pack thru it and it seems to work fine. Kind of slow, maybe near 40, but I think closer to 36-38 mph. I will try my radar gun on it tomorrow with a freshly charged pack and see how it does. Other wise it runs great, plenty of steering, and drives very well. Turns on a dime, you can really feel that it has a center diff! I may be thinking that it is slower than it is, due to how smooth and easy to drive it is! Are the diffs stock? I can feel that there is some heavier fluid in the rear, the front feels like grease or light oil. I may move up to a 22 tooth pinion as the motor is barely getting warm with this gearing.