Part location:Motor driving gear position Product major function & usage:Transmit power, three point support is more stable Major advantages of upgrading to this part/product:(1) Made of 40Cr Carbon Steel, stronger than the original gear, wear-resistance and better transmission. (2) The upgraded 40Cr Carbon steel Spur Gear 33T M1.5 and large gear shaft, bearing and aluminum 7075 fixed mount bring out three-point support, which is better than the original two-point support in stability and transmission effect. (3) Spur Gear 33T diameter: 6mm, D-shaped motor gear hole, module: 1.5mm, number of teeth: 33T,tooth surface width: 14mm,Outer diameter: 52.4mm Package includes:Spur gear 33T M1.5-1pcsCush drive input shaft-1pcsBearing 6x13x5-1pcsshim 6x8x3.5-1pcsshim 6x8x7.5-1pcsSet screws 5x5-1pcsAluminum 7075 mount-1pcs Suitable Model:TRAXXAS 1/6 4WD XRT 8S-78086-4TRAXXAS 1/5 X-MAXX 6S MONSTER TRUCK-77076-4TRAXXAS 1/5 X-MAXX 8S MONSTER TRUCK-77086-4TRAXXAS 1/5 X-Monster BIGFOOT 50th-77136-4TRAXXAS X-Monster Chassis-77036-4