Originally Posted by
Randy Caster
Diff outdrives wearing out? Just replace the blades on your universals and the outdrives will last forever. The axles have 4 holes instead of 2, so rather than replacing them, Tamiya gives you the option to move the pin to the other hole and basically have a brand new axle for free.
Xrays have four holes too. Come to think of it all the cars I have seen do.