HPI Racing 100413 Savage XL Chassis Conversion We recommend using the Savage XL body for the best fit, but some of the larger truck bodies can also be used Note: Original Savage trucks (pre-Savage X) will also need 1 package of #86709 Engine Mount Brace 7x7x74mm (2pcs) for the conversion Also included is a 3mm thick engine mounting plate and an extended rear drive shaft