Item Type: RC Front Rear Axle Assembly Material: Aluminum Alloy, Steel Total Length: Approx.104mm/4.1in Pin to Pin Length: Approx.90mm/3.5in Output Shaft: Approx.2.8mm/0.1in Hex Coupler: Approx.7mm/0.3in Applicable: For Axial SCX24 1/24 full series Package List 1 x Front Axle 1 x Rear Axle 1. Please allow 13mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1Replacement for: This axle kit is for upgrade and replacement, suitable for Axial SCX24 1/24 full series, can directly replace the original parts. 2Improved Performance: CNC machined, gear and drive shaft are made of hardened steel, the drive shaft angle has been improved, greatly improve climbing performance. 3Taller and Wider: The portal axles are taller and wider, raising the chassis, providing higher ground clearance and reducing torsion on other drivetrain components. 4Aluminum Alloy Shell: The shell is made of premium aluminum alloy material, strong and lightweight, with more stable performance and excellent durability. 5Simple Installation: The portal axle can fit perfectly with the RC car, easy to install, improve the appearance and make your RC car more attractive.