For racers looking for smart fat financial savings and optimized rotating fat, XRAY provides this ultra-lightweight solid axle as an immediate replacement the conventional diff or Multi-Diff. This axle is 56per cent lighter compared to the standard Solid Axle, with a hollow axle for super-low rotating fat. The ultra-strong 1-piece solid axle is CNC-machined from world-renowned HUDY Spring Steel, and includes lightweight aircraft aluminum pulley adapter.