J90047 - Pair of sturdy CNC machined from solid billet steel cardanic joint transmission shafts for Traxxas Trx-4 with 313mm wheelbase. •Black finish •Super smooth operation •Shafts length: 98-126mm and 123-151mm. •Laser engraved for authenticity •Made to fit 5mm output shaft •Fits TRX4 324mm and custom scalers and crawlers with 5mm output shaft and similar excursions.