Shim kit

Hey guy"s need your help.I have a losi 8 buggy 1.0 version,the cvd bearing's
for all four wheels seem to be getting a loose with all the raceing and bashing
that i do.I was trying to find a shim kit but can"t seem to find a part number.
I tryed looking in my manual ,and i could find was the number for the frount
and rear diff"s.I went to my LHS and they could not find one either.Any help?
Thank"s.