Strong spider gears are important because they
can take lots of abuse. Examples of this are:
1. Using the turning brake while
accelerating (sometimes needed).
2. Landing from a jump while on the gas when one rear wheel hits a split
second before the other (very abusive, a mistake often made by novices).
3. Burnouts, or dumping the clutch too fast when one rear wheel is on
blacktop, cement, or hard dirt while the other wheel spins in loose sand or
All MD transaxles have 4 spider gears (superdiff
arrangement), as seen in our disassembly picture.