i just replaced one in a 140 S320, same 104 in there that is in the 124 chassis so it should fit, the main difference is the 5th gear control system. the connector on the trans at right rear is different than the 722.4, also there is a controller unit for the 722.5 and a switch internally in the gear shift selector that allows the unit to switch from 4th 5th, what specifically are you trying to do?

__________________
1967 250 S
1967 280SE
1968 250S
1971 280 SE
1973 220
1974 280 S
1975 450 SEL
1976 220 D
1979 300SD
1983 300 SD
1985 230 TE euro
1986 280SL
1986 500 SEL euro
1986 190E 2.3
1990 300 SE
2003 C230 K
2004 C230 K
1987 560SEL
1987 300SDL now in canada
2005 C230
1998 C43 AMG Sold to DON
1993 190E 2.6
300TD Former daily driver Totaled
current:
R320 CDI
Ram 2500 Cummins