Hello, rwaw,
Had a look at my '68 280 yesterday. Its has a manual gearbox and manual steering. There is enough of a gap between the exhaust and steering gear to remove the starter, which I recently had changed to the later higher HP one.
What exhaust have you got? Sometimes, when stainless exhausts are made locally and made individually for a car, they are not shaped the same as original???
Sorry, not much help.
naj
65 230SL
68 280SL