Description RH Leveling Box Assembly. Length 20-1/2" closed, 26" open. Contains, fork, shaft, pinion (185220M1-10-1/2"), housing, gear, bearing, handle and hardware. Replaces 677061. Services all catergory I standard models. This item is a suitable alternative for the following: HLBMF61, S4290, 779385, S.4290, A-1884760M94, 677061, A1884760M94