i have looked and can't seem to find what i am looking for. i have most of a NOS cruise control system for a 72 cutlass. i am missing a couple parts. one is the switch for the dash that goes by the wiper switch. i am wondering if the 70 to 72 would be the same for the switch. also is the stop light switch differant for a cruise control car. if so would that be the same on a 70 to 72. i know that some parts were diferant for 72 but don't know what. i have the parts i am missing on a 70 parts car but don't know if they are the same for 72.

 

The dash switch and brake stop bracket with switch are the same 1970 to 1972 Cutlass. The transducer/ bracket and vacuum bellows are different in 1970-71 but will function fine on a 1972. It is far easier to find the 1972 specific parts, as many of the parts were used through the mid 1970's.

 

Yeah, the only major difference is the servo bellows and the transducer as far as I know. The earlier transducer has a two wire connector, think the '72 has three? but if you have the harness no probem. The one thing that is different on all of them is that there is different linkage for two and four barrel carbs. The same exact '71 and earlier bellows rubber part was used later in Range Rovers and some other foreign models and are available cheap.