You certainly could, here are a list of some of the suspension parts that can be upgraded using RC8.2 parts:
89558 - Caster Blocks
89586 - RC8.2e RTR Shock Tower (front)
or 89538 - RC8.2 Front Shock Tower (aluminum)
89587 - RC8.2e RTR Shock Tower (rear)
or 89539 - RC8.2 Rear Shock Tower (aluminum)
89549 - Front Upper Arm
89550 - RC8.2 Front Arms
89551 - RC8.2 Rear Arms
89530 - RC8.2 Front Sway Bar Kit
89531 - RC8.2 Rear Sway Bar Kit