I recently took apart the rear end of my Slash 4x4 PE, slapped it all back together and now there is binding issues. If I tighten the 4 screws that you unscrew to access the slipper or center diff, there becomes a lot of binding in this area and the truck barely rolls freely. When I loosen them, the binding seems to lessen. It still seems as though that there is binding though. I did not change anything when I took it apart I just re-lubed everything. One thing I did do is where the diff and the slipper/center diff meet, the little ring around there was building up dirt so I threw some WD-40 into the ring. This may have caused it but I am not sure. I know something is wrong because the truck will not free roll and is really loud. I've scratched my head over this for a while now. I don't want to run loose screws in my truck. Also, when I spin the back wheels, the little ring where the diff/center diff meet spins as well. I am pretty sure this is supposed to stay seated. Did I lube the ring instead of cleaning it?
These are the screws that when I loosen, the binding lessens. The other two are on the underside of the chassis.