I have two H2E's and a H2D. The 2E's are 63/74/19, the 2D is 62/74/19 or 17- I cant remember which. I think all were for the L10 also, however ultimately replaced by the HX50. One of the H2E's is currently in use on my truck but I machined a gated 40 housing to fit. Anyway, there might be some more variations but this is the info for "H2's" that I possess. Hope it helps Roach.