Bare with me and i'll try to explain my conclusion......
YearOne's kit says it fits A & B bodies......Hurst install kit for B bodies is #3734089............No A listed anymore at hurst..........The reverse lever listed for that kit is #1052445.......
Also, a original hurst lever should have the last 4 digits of the part# stamped on it. Click on the photo of the arm in #3 and it will expand the pic. Might want to check the one you have and see if a number is present.......Disregard the YearOne stampings, they are repo's.