Just to let you know, a temporary fix, I replaced the center diff with an xray 808 center diff (with bearing), changed the spur for the Kyosho 46t (I am normally running Kyosho spur on my Serpent) and it worked. Used only one seal but after 10 min, it let the oil out but I had 2 that were very loose.

It worked for me, it permitted me to bump up in A main !!

Nog.