Traxxas TRX-4 Spool

• For those that wanted to replace the selectable locking differential with a full time traction solution. 
• Less moving parts = Less possible breakage and less weight.
• These are solid C1144 Stressproof Steel Hardened.
• Made in the USA
• And come with a BOMBPROOF LIFETIME warranty. 
• Works with your gears, hardware, and axle shafts.
• A direct drop in stock Replacement.