They also include a handy dust plate to cover the bottom of the bulkhead on vehicles such as the Rustler

If you need more you can purchase Hot Racing part number W8X

Big Bore Shock Springs (M/Gold/Medium) (2)

PBX A/T Hardcore 1

One Spiral Cut Bevel 8 teeth Pinion Gear

Savox - Monster Performance, Brushless Servo Black Edition .055sec / 624.9oz @ 8.4v KYO34431T2 They also include a handyThe powerful "Monster" performance series from Savox utilize a unique brushless motor and controller technology to boost power up to 35% over previous generation servos. Full Aluminum Case 3 Precision Ball Bearings. 6v: 305. 5oz tq . 085 sec 7. 4v: 430. 5oz tq . 07 sec 8. 4v: 624. 9oz tq . 055 sec Dimensions L x W x H mm: 40. 3 x 20. 2 x 38. 7