See: RDRP

RDRP have introduced new aluminium rod end balls for all 3rd generation RC8 kits including the RC8B, RC8B3e, RC8T3 and RC8T3e. These optional parts are a direct replacement for the kit’s standard steel balls. They are machined from aircraft-grade 7075 aluminium and come hard-anodised for wear, meaning they will last longer while not being prone to corrode in unfriendly environments. An inner hex portion makes installing and setup changes easy. On top of this the balls save about 1g per piece compared to the standard steel parts. The rod end balls come in sets of eight.