This drum is a must for high powered vehicles using the GM2004R transmission. This custom drum assembly eliminates shaft breakage common with the 2004R transmission installed behind engines producing over 300 foot pounds of torque.
The stock shaft is removed from the clutch drum on a CNC mill. A second milling operation machines the drum to accept the new shaft. The replacement E4340 steel billet shaft is the product of an 8 step CNC turning,drilling,and splining process.
The shaft is then heat treated and welded into the drum.This item has been tested in vehicles producing over 800 foot pounds of torque with absolutely no signs of distress.
PLEASE NOTE - A CORE IS NEEDED TO COMPLETE THIS ITEM