Last set that I purchased that were not on a parts truck came from Army Surplus Warehouse...
http://www.armysurpluswarehouse.com/
I'd also give AB Linn, Sid Beck, and John Bizal a call.
A B Linn Inc. M-37, M-715, jeep parts. 7022 Jones Road, Salisbury, NC 28147.
704-637-9076...