Originally Posted by ziggy12345

The rear pully that drives the diff on the brake shaft wears out quick. Replace every 2 meetings or better still replace with metal one (it still wears out!)

The front diff drives undercut if you use the kyosho CVJs. Use the 3 racing oners as they have a bigger dia pin through them. Replace the drives every 3 meetings. The CVJ's also undercut and need replacing. Just check for play

The rear diff drives undercut as above. Replace every 3 meetings

The roll centre inserts wear out every 3 meetings. Replace

The steering balls wear out. Replace with titanium

Change the shock mounting balls for bolts

Cheers