Shaft is machined from 300M and is the strongest on the market for the 2004R. The run out is guaranteed to be .002 or less.
Spline is a precise fit to the OD ring gear. The clutch basket is checked on every unit before it leaves assuring you get a part that does not require work when you receive it and of the highest quality.
We also use a Oil lite® bushing that decreases wear and increases lube to the OD planet.
This drum will require the input shaft to be shortened for clearance.