This is a genuine HPI Racing heavy duty 45 tooth

The IFS003-1015 is a genuine Kyosho big shock spring in light purple

A lower tooth count provides taller gearing

There are some concrete blocks and other pieces of junk piled on top

Part number LOS241062

Powerhobby Aluminum Tow Hook Trailer Hitch Blue FOR Traxxas TRX-4M Slot Car Parts This is a genuine HPIPowerhobby Aluminum Tow Hook Trailer Hitch Blue FOR Traxxas TRX 4M Description Add towing capability and a realistic scale appearance to your Traxxas TRX 4M with the Powerhobby Aluminum Tow Hook Trailer Hitch. Designed specifically for the TRX 4M platform, this hitch provides a secure connection point for compatible mini crawler trailers and towing accessories. The aluminum construction provides improved durability while keeping the hitch lightweight.