Here's an 84T, steel
https://www.amazon.com/Powerhobby-Hardened-Steel-Spur-Slipper/dp/B0BYM5JDHM/ref=sr_1_22?crid=3G5BXNUBN5L5X&keywords=team+losi+spur+gear+48p&qid=1699756216&sprefix=team+losi+spur+gear+48p,aps,96&sr=8-22
But I'm not sure that's your answer. I'd go back to the stock Spur and...