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G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


cruise control diaphragm replacement

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cruise control diaphragm replacement Empty cruise control diaphragm replacement

Post by dhw3971 Tue Jul 22, 2014 2:21 pm

So the rubber vacuum diaphragm on my car has disintegrated and me no longer have cruise control. I'm not yet having luck searching the WWW for these parts...anyone got a line on where I can find them?
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cruise control diaphragm replacement Empty Re: cruise control diaphragm replacement

Post by thatfnthing Tue Jul 22, 2014 3:28 pm

Never had the factory cc, but it's part of the transducer, yes?

http://www.cardone.com/Products/Product-Detail?productId=36101&p=rock

Rockauto has them for about $67.00. Doesn't look like you can get just the diaphragm.
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cruise control diaphragm replacement Empty Re: cruise control diaphragm replacement

Post by 1973 454 MONTE Tue Jul 22, 2014 3:38 pm

he needs the rubber boot that goes on the other part
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cruise control diaphragm replacement Empty Re: cruise control diaphragm replacement

Post by dhw3971 Tue Jul 22, 2014 3:59 pm

yes! The rubber boot....that's what I need.
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cruise control diaphragm replacement Empty Re: cruise control diaphragm replacement

Post by 1973 454 MONTE Tue Jul 22, 2014 4:12 pm

http://www.ebay.com/itm/1966-1967-CHEVROLET-CHEVELLE-SS-IMPALA-CAPRICE-GM-CRUISE-SPEED-CONTROL-/121387181166?pt=Vintage_Car_Truck_Parts_Accessories&hash=item1c433d646e&vxp=mtr

im not sure if this is close to it

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cruise control diaphragm replacement Empty Re: cruise control diaphragm replacement

Post by dhw3971 Tue Jul 22, 2014 4:23 pm

That looks dang close...I'll take a photo of it and that will make things clearer.
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cruise control diaphragm replacement Empty Re: cruise control diaphragm replacement

Post by Mcarlo77 Tue Jul 22, 2014 7:39 pm

These Servos look similar, but I know the mtg brackets and distance from face of Servo (diaphram) and front bracket where the line is secured are different lengths. I know that's true with Montes vs Chevelles/Malibus by about 1/2" (Montes are longer). Can't be sure if that can be compensated via some sort of adjustment to the linkage.

I happen to know of a '77 Malibu wagon at one yard I visit periodically that has cruise on it. I could check that one out if you'd like. Not sure how soon I'll be getting out there (need some other guys on here to give me their "wish lists" to justify the trip...ha). If I do that, you may as well save your money on buying that headlight warning buzzer you mentioned on the other thread as I could grab one of those, too.
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