New replacement differential lock pumps are now in stock for John Deere L Skidders Pn. AT439017 Fits John Deere 640L, 640LII, 748L, 648LII, 748L, 748LII, 848L, 848LII, 948L, 948LII pn. AT441551 Fits John Deere 640L, 640LII, 748L, 648LII, 748L, 748LII Just pick up the phone and let us know how we can help solve your problem. For Quick And Easy Parts Pricing Please call Eastern: 617-874-1700 Or Midwest: 612-284-9300 WORLD WIDE SHIPPING Email: Info@QHEParts.com VISIT: WWW.QHEPARTS.COM