Symptoms include excessive play in the drivetrain, odd noises when accelerating, and decreased acceleration performance. Regular inspections are key to catching wear early.

They should be inspected and serviced every 6-12 months, depending on usage, to ensure there is no oil leakage and that seals are intact.

Yes, larger or more efficient cooling fins can be installed to prevent overheating, especially in high-performance setups.

Yes, upgrading to a controller with higher-sensitivity joysticks or incorporating a faster transmission protocol can enhance responsiveness. Some aftermarket controllers also offer adjustable trim settings for fine-tuning.

It should be changed every 6-12 months or after significant use, as contaminated oil can affect differential performance and lifespan.