NEED HELP TO ID THESE CRANE ROLLER ROCKERS

[ARPM]

I got these at a good deal but have no info on them. They are 3/8" studs. The only numbers in the Rockers are 2D 99.
I need to know the Ratio of them and also the crane part number. Any info greatly appreciated.

 

[stephen4785]

http://www.cranecams.com/?show=browseParts&lvl=4&prt=108&action=partSpec&partNumber=36750-16
Kinda of look like these. The ration is stamped on the front of them.
It should say 1-1.6 or something. These are the only gold series Ford ones with a 3/8 stud