How to tell torque converter type. No decal.

[Luke Harris]

I have a remanufactured torque converter bought for a 1985 Grand Wagoneer with AMC 360 and Chyrsler 727. Does anyone have knowledge on how to tell if this torque converter is a lock-up, high-stall, or low-stall. According to the repair manual there should be a decal on the front of the converter which tells you if it is a lock-up, high-stall, or low-stall. Unfortunately, there is no decal on my converter. There are two stampings in the body of my converter. One reads "B438" and the other reads "8600".