Rear Differential Rebuild Kit for Case 590 Super L & M Backh Fits: Case/International Harvester - 550G Crawler; 580L Indust/Const; 580L Series 2 Indust/Const; 580M Indust/Const; 580SK Indust/Const; 580SL Indust/Const; 580SL Series 2 Indust/Const; 580SM Indust/Const; 590SL Series 2 Indust/Const; 590SM Indust/Const 1-year protects you after your purchase. Replaces OEM Numbers: Case/International Harvester - J934937 Flywheel For 550G 580L 580M 590SM Models O-Ring Fits Case 570LXT 570MXT 580K 580L 580M 580SK 580 Super L 580 Super M 590 590 Super L 590 Super M 570LXT 580L 580 Super L 590 Super L 271624 Tractor Flywheel Replacement Flywheel Gear with Ring J934937 for CASE 550E 580 580M 580SM 590L 585G 586G 588G 550G 650G 650H 750H. Replacement Part Number: J934937, J907630, J918961... If you have a problem, we will take every step to assist you, contact us for a replacement. Specs: Flywheel, Notes: Ring Gear. Db Electrical FlyWheel Ring Gear For Case International Tractor 704436r1 1709 1051 100% New aftermarket Flywheel built to meet OEM specifications for Case/International Harvester