Spicer IPL: Tandem Drive Axle Illustrated Parts List - All Non-Current Models - Manual (Page 23)

23
Ring Gear and Pinion Identification
Drive Pinion and Gear Set
Ring Gear and Drive Pinion are matched parts and must be
replaced in sets.
Complete identification is stamped on both parts shown in the
adjacent drawing.
Order by Spicer “Set No.” which includes drive pinion nut.
IMPORTANT: If changing ratio, be sure to check pinion bearing
cage & cup assembly variation.