- One (1) 43 tooth diff spiral cut ring gear

- Replaces factory plastic axle case housing With one diff cover and one output cover

5819 & 5825

Sintered (hardened) pinion gear

AFX Racing - Track, Curve 18"x1/8 (2pcs) ASC40010C - One (1) 43 toothGet that centrifugal force going with the largest radius curve track you can buy! AFX track has been the standard in the HO slot world since it was designed and patented 40 years ago. Consistently recommended by hobbyists around the world, AFX track goes together and comes apart easily while maintaining excellent electrical contact. With more curved, banked, straight and specialty track than anyone, the only limit is your imagination.