Is this a cruise control unit? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Cash3481** · 07-16-2012, 11:26 PM

Anyone know if this is a cruise control unit mounted on the D/S inner fender. It has the speedometer cable hooked to it and then another spedo cable running to the transmission. It also looks like there was a wiring harness plugged into it previously but it is long gone. I found a knob under the dash by the drivers left knee that goes nowhere and am assuming it was the controller/potientiometer maybe?
In any case I was going to sell it and have no idea where to start.
I appreciate anyones input or knowledge.

Mike

**special-K** · 07-17-2012, 06:50 AM

Yes,it is a cruise control. I'm pretty sure I've seen that type before. Is nothing left in the cab? All wiring gone? There would have been a servo to control the throttle itself,as well.

**Cash3481** · 07-17-2012, 09:28 AM

There is a diaphram mounted very haphazzardly to the firewall close to where the oil line exits the cab. It looks like it pulls the throttle back when its engaged but it has a tear in the diaphram. Ill post a pic after work if youd like to confirm or deny mty chain of thought. I mentioned the knob under the dash but it only has 2 wires on it so i assumed it was a potientiometer for something else. The truck was pretty much untouched other than that.
What do you think its worth? I assumed it may be worth nothing or very little without the harness and having the diaphram split.
Thanks for lending your vast knowledge, I really appreciate it!
Mike

07-16-2012, 11:26 PM	#1
Cash3481 Loves all GMC trucks Join Date: Jul 2010 Location: Columbia Mo Posts: 4,435	Is this a cruise control unit? Anyone know if this is a cruise control unit mounted on the D/S inner fender. It has the speedometer cable hooked to it and then another spedo cable running to the transmission. It also looks like there was a wiring harness plugged into it previously but it is long gone. I found a knob under the dash by the drivers left knee that goes nowhere and am assuming it was the controller/potientiometer maybe? In any case I was going to sell it and have no idea where to start. I appreciate anyones input or knowledge. Mike Attached Images

07-17-2012, 06:50 AM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Is this a cruise control unit? Yes,it is a cruise control. I'm pretty sure I've seen that type before. Is nothing left in the cab? All wiring gone? There would have been a servo to control the throttle itself,as well. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

07-17-2012, 09:28 AM	#3
Cash3481 Loves all GMC trucks Join Date: Jul 2010 Location: Columbia Mo Posts: 4,435	Re: Is this a cruise control unit? There is a diaphram mounted very haphazzardly to the firewall close to where the oil line exits the cab. It looks like it pulls the throttle back when its engaged but it has a tear in the diaphram. Ill post a pic after work if youd like to confirm or deny mty chain of thought. I mentioned the knob under the dash but it only has 2 wires on it so i assumed it was a potientiometer for something else. The truck was pretty much untouched other than that. What do you think its worth? I assumed it may be worth nothing or very little without the harness and having the diaphram split. Thanks for lending your vast knowledge, I really appreciate it! Mike



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