The Exotek DR10 Aluminum HD Rear Arm Mount "D" is a heavy duty 7075 alloy rear suspension mount option for the Team Associated DR10 and DB10 models. This upgrade ensures precise suspension setting race after race, even after hard impacts, so that you drive more and wrench less. Tapered hinge pin openings provide easier installation and maintains the stock geometry and toe in. Use with Exotek DR10 ARM MOUNT C (EXO2022) for adjustable toe in.