A1-1205-A-2731 Seal Differential Unitized PAI 85580CROSS REFERENCE: 8235 A11205A2731 A1 1205 A 2731 APPLICATION: Single Axle and Rear Tandem Axle RS 21160 161 23160 161 24160 161 261 Multiple Use Application BRAND: PAI 85580 A1 1205 A 2731 Seal Differential Unitized PAI 85580 supports lubrication retention for USA truck parts and heavy truck parts. Ensures stable differential function. All components are proudly manufactured in the U. S. A. by PAI Industries Inc., an ISO9001 certified company with