Features:

• Unrivaled durability from 1 in. stock size
• Rear spline prevents rear internal gear journal end from twisting off by engaging full internal spline of gear

Note: 

• Requires the use of thrust bearing between the forward clutch hub and direct drum that moves support of the forward clutch hub from the main shaft to the direct drum/sun gear tube
• May be used as a replacement for late model 4L80-E and 4L85-E solid main shaft. Checking clearance between the front of main shaft and rear of the input shaft and may be required to remove .060 in. from either the main shaft of the input shaft.