Description: At the 2011 Thailand International R/C Touring Car Championship (TITC) held in February, TRF (Tamiya Racing Factory) drivers raced their TRF417's with a new Gear Differential Unit installed in the car. Tamiya now offers the TRF417 with this unit as a standard option part included with this new spec version of the TRF 417.      Specs and Features Aside from the newly added Gear Differential Unit, chassis is unchanged from Item 42184. (ball differentials included) State of the Art TRF (Tamiya Racing Factory) competition level touring car chassis 4WD dual belt drive system 4-wheel independent suspension system with carbon reinforced plastic parts Universal drive shafts Aluminum 5mm hex hubs for wheel mounting (industry standard size, fits all 24mm Tamiya wheels and most aftermarket brands) Camber, castor, toe-IN/OUT, roll-center, anti-dive/anti squat, shock angle, wheel-base, track width are all fully adjustable Battery compartment accommodates LiPo and LiFe hard case battery packs Carbon fiber upper and lower decks Machined aluminum (TRF blue anodized) suspension blocks, bulk-heads and motor plate parts Full ball bearings (Teflon Sealed) Aluminum threaded turnbuckles (TRF blue anodized) TRF417 Gear Differential Unit II x 1pc. Fits 190mm touring car and sports car body sets (note: Some Tamiya TA-05 IFS low nose body sets intended for the TA-05 or TA-06 may be too low to fit the TRF417�s front end due to its stand up shock design) TRF aluminum threaded dampers with Teflon pistons and cartridge components Includes front and rear sway bar set Note: Radio gear (Transmitter, receiver and steering servo), motor, body set, tires/wheels 7.2-7.4 volt battery and charger sold separately.