Not 100% sure, but I don't think there is one. It's not real common for folks to retain the stock 999 on a swap...I've only seen them available for 350 swaps. Try picking up the phone...most of the smaller specialty vendors don't have the time to be super-responsive to e-mails. Sucks, but that's the way it is...I always call if I don't hear anything for more than a couple of days.
'86 CJ-7 Laredo: 4.2,T-999,D300,D30/D44,'94 YJ tub, full cage, Shrockworks rockers, OYR corners, AC,cruise,restored seats,3 tops,2.5" Superlift,F-T shackle reversal, RS9000x's,35" Dunlop Mud Rovers.
'83 Scrambler: time & money pit under construction with parts from CJ's,YJ's,TJ's,FSJ's,GM,Ford,IH,Honda,Toyota and a whole lotta aftermarket & custom stuff. http://www.jeepskate.net