Traxxas 5379x (13/37) on the right vs the stock 6779 (12/47). About to install in my recently built Stampede 4x4 kit. Also picked up the gear set for the rear (6879), and
Diff Gear 13/37t Replace Of 5379x For Traxxas E-maxx Slash Xo-1 1/5 Rc Car - Parts & Accs - AliExpress
Traxxas 5379x Ring gear differential/ pinion gear differential NEW TRA5379x TRA1 885354266476 | eBay
5379x TRAXXAS Differential set w/ ring gear 5379x
Ring gear, differential/ pinion gear, differential | Traxxas
Traxxas steel bevel gear differential alternative 5379X for large s large e E-maxx slash - AliExpress