Well, I just got done installing the slipperential in my 808 sunday and it was a very tight fit. It took quite a bit of dremel work and shimming to get it all to fit without rubbing. It wasnt excatly an easy install. I dont have time right now, but I took pictures and everything along the way. I will be posting pictures of what I needed to do in the "where does it fit" thread in the slipperential forum in a day or 2 once I get a chance.
Quick thumbnail of what needed to be done: Raise center diff 2-3mm, Dremel the spur slot in the chassis wider by 1mm or so, Dremel the plastic rear steering servo mount for clearance for the front outdrive on the slipperentail. The biggest challenge is the length of the outdrives on the slipperential is alot longer than the xray center diff outdrives which makes it basically hit the back of the steering servo mounts. I Had to remove quite a bit of material to get it to fit and not rub.
I havent run it yet in the 808, but it looks like it should work with no issues once you get it shoe horned in there.
