These are the optional RPM Wide Front A-Arms for the TRA Electric Rustler and 2WD Stampede. Composite nylon construction Widens front wheel stance by almost 1-1/4" (31.8mm) for greater stability Wide front A-arms extend the front width by exactly the difference in offset between the front and rear wheels Left and Right Wide Front A-Arms with Instruction Sheet Longer turnbuckle and camber links; Rustler XL-5: RPM Screw Kit (RPMC0680) TRA Long Camber Links (TRAC3643) TRA Long Toe Links (TRAC3645) Stampede XL-5: RPM Screw Kit (RPMC0680) TRA Long Camber Links (TRAC3643) TRA Long Toe Links (TRAC6338) Rustler VXL: RPM Screw Kit (RPMC0680) TRA Long Camber Links (TRAC3643) TRA Long Toe Links (TRAC3645) Stampede VXL: TRA Long Toe Links (TRAC6338) One pair of front wheels, used to replace rear wheels, for proper alignment jxs 05/19/15 ir/jxs &