977 SL8 XLI 2-Speed Gearbox Set by Serpent
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This product was added to our catalog on March 7, 2016.The Serpent 977 SL8 XLI 2-Speed Gearbox Set is a complete upgrade that will allow 977 owners to upgrade their chassis to the XLI gearbox. Package includes clutch bell, clutch parts, top shaft and hardware, as well as 56, 57, 58, 61, 62 and 63 tooth spur gears.