Specifications:
Ring Gear Diameter: 6 5/8"
Pinion Shaft Diameter: 1.313"
Ring Gear Bolts: 10
Right Hand Threads: 3/8-24
Pinion Splines: 23
Cover Bolts: 12

Tech Note:
When replacing a 3.45 and numerically lower ratio gear set with a 3.73 or higher gear, the case must be changed to a 3.73 and higher case.