Groeneveld retrofit speed limiters used to have a dash mounted stalk, which had the speed hold /limit function you mentioned, Ive still got the sealing pliers for them!
F90 MANs had it
Groeneveld retrofit speed limiters used to have a dash mounted stalk, which had the speed hold /limit function you mentioned, Ive still got the sealing pliers for them!
F90 MANs had it