Speedo cable w/ cruise... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Buzzman · 07-18-2011, 09:17 PM

Hey There.

First post, hopefully of many. I've just gotten my second square-body, a 79 Cheyenne SWB. Goodwrench 350, th400, stock stock stock other than that. Among a few problems is the broken speedo. This truck has cruise (which I don't plan on using), and thus the two separate cables - one from the gauge to the cruse thing on the inner fender, and one from the cruise to the tranny on the driver's side. My question is whether or not I can bypass the cruse all together and use one standard-length cable from the gauge to the tranny. Anyone done this? Thanks.

Restrorob · 07-18-2011, 09:22 PM

Sure it can be done, Just buy the cable for your same truck without cruise.

And..... If I don't do it someone else will !

Buzzman · 07-18-2011, 09:25 PM

Great, thanks for the reply. How about removing the whole cruise unit? Is it just a matter of plugging the vacuum lines to the carb? There's a bunch of crap going on back there and I'm a little hesitant...

Restrorob · 07-18-2011, 09:37 PM

Just remove all the parts and block the vacuum ports on the carb/intake and tape the wire plugs to prevent shorting on anything, I've removed them and added them over the years......

Buzzman · 07-18-2011, 11:40 PM

Great, thanks! I'll let you know if I ruin anything

jimbonice · 07-19-2011, 11:48 AM

If you do want to run cruise, it is not that expensive to fix. When I bought my 1977 it had the cruise unhooked with one single speedo cable. I bought a new cruise transducer from rockauto and the proper speedo cables and it has been good ever since.

Buzzman · 07-19-2011, 09:52 PM

Ok, got the cable hooked up, drove around the block... a miracle! It's alive!
Isn't it great when things work? Thanks for the help.

Restrorob · 07-19-2011, 09:57 PM

Kool !

Now where's those pics ???

Buzzman · 07-21-2011, 05:30 PM

Hey Restrorob,
Thanks for all the tips - I'm planning on pulling the cruise unit this weekend, but had a question about the wiring. You mentioned taping the wires to prevent shorts. Could I just clip them from the unit on the fender and tape them there, or would this be done down below where all the other wiring is in the cab? Sorry for the dumb question, but electrical stuff freaks me out.

I'll get those pictures up, too

Restrorob · 07-21-2011, 06:04 PM

Buzz.... You can trace them back to where ever you like then cut them off, Just make SURE you cut each wire all by it's self. Cutting multiple wires at one time could be a awakening moment....

07-18-2011, 09:17 PM	#1
Buzzman Registered User Join Date: Jun 2011 Location: Spokane, WA Posts: 48	Speedo cable w/ cruise... Hey There. First post, hopefully of many. I've just gotten my second square-body, a 79 Cheyenne SWB. Goodwrench 350, th400, stock stock stock other than that. Among a few problems is the broken speedo. This truck has cruise (which I don't plan on using), and thus the two separate cables - one from the gauge to the cruse thing on the inner fender, and one from the cruise to the tranny on the driver's side. My question is whether or not I can bypass the cruse all together and use one standard-length cable from the gauge to the tranny. Anyone done this? Thanks. __________________ 79 C10 Cheyenne SWB Daily Driver

07-18-2011, 09:22 PM	#2
Restrorob The One And Only !!! Join Date: Jan 2007 Location: Hole in the woods Florida Posts: 4,567	Re: Speedo cable w/ cruise... Sure it can be done, Just buy the cable for your same truck without cruise. And..... If I don't do it someone else will ! __________________ 93 Jeep XJ 88 Buick La Sabra Toys; 88 TA-GTA in the works.... 97 GMC Ext. Cab 502 Crate 5 Spd......Sucks Gas But Haulz Azz ! The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic. *"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!*

07-18-2011, 09:25 PM	#3
Buzzman Registered User Join Date: Jun 2011 Location: Spokane, WA Posts: 48	Re: Speedo cable w/ cruise... Great, thanks for the reply. How about removing the whole cruise unit? Is it just a matter of plugging the vacuum lines to the carb? There's a bunch of crap going on back there and I'm a little hesitant... __________________ 79 C10 Cheyenne SWB Daily Driver

07-18-2011, 09:37 PM	#4
Restrorob The One And Only !!! Join Date: Jan 2007 Location: Hole in the woods Florida Posts: 4,567	Re: Speedo cable w/ cruise... Just remove all the parts and block the vacuum ports on the carb/intake and tape the wire plugs to prevent shorting on anything, I've removed them and added them over the years...... __________________ 93 Jeep XJ 88 Buick La Sabra Toys; 88 TA-GTA in the works.... 97 GMC Ext. Cab 502 Crate 5 Spd......Sucks Gas But Haulz Azz ! The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic. *"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!*

07-18-2011, 11:40 PM	#5
Buzzman Registered User Join Date: Jun 2011 Location: Spokane, WA Posts: 48	Re: Speedo cable w/ cruise... Great, thanks! I'll let you know if I ruin anything __________________ 79 C10 Cheyenne SWB Daily Driver

07-19-2011, 11:48 AM	#6
jimbonice Registered User Join Date: Aug 2010 Location: White City, SK Posts: 411	Re: Speedo cable w/ cruise... If you do want to run cruise, it is not that expensive to fix. When I bought my 1977 it had the cruise unhooked with one single speedo cable. I bought a new cruise transducer from rockauto and the proper speedo cables and it has been good ever since.

07-19-2011, 09:52 PM	#7
Buzzman Registered User Join Date: Jun 2011 Location: Spokane, WA Posts: 48	Re: Speedo cable w/ cruise... Ok, got the cable hooked up, drove around the block... a miracle! It's alive! Isn't it great when things work? Thanks for the help. __________________ 79 C10 Cheyenne SWB Daily Driver

07-19-2011, 09:57 PM	#8
Restrorob The One And Only !!! Join Date: Jan 2007 Location: Hole in the woods Florida Posts: 4,567	Re: Speedo cable w/ cruise... Kool ! Now where's those pics ??? __________________ 93 Jeep XJ 88 Buick La Sabra Toys; 88 TA-GTA in the works.... 97 GMC Ext. Cab 502 Crate 5 Spd......Sucks Gas But Haulz Azz ! The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic. *"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!*

07-21-2011, 05:30 PM	#9
Buzzman Registered User Join Date: Jun 2011 Location: Spokane, WA Posts: 48	Re: Speedo cable w/ cruise... Hey Restrorob, Thanks for all the tips - I'm planning on pulling the cruise unit this weekend, but had a question about the wiring. You mentioned taping the wires to prevent shorts. Could I just clip them from the unit on the fender and tape them there, or would this be done down below where all the other wiring is in the cab? Sorry for the dumb question, but electrical stuff freaks me out. I'll get those pictures up, too __________________ 79 C10 Cheyenne SWB Daily Driver

07-21-2011, 06:04 PM	#10
Restrorob The One And Only !!! Join Date: Jan 2007 Location: Hole in the woods Florida Posts: 4,567	Re: Speedo cable w/ cruise... Buzz.... You can trace them back to where ever you like then cut them off, Just make SURE you cut each wire all by it's self. Cutting multiple wires at one time could be a awakening moment.... __________________ 93 Jeep XJ 88 Buick La Sabra Toys; 88 TA-GTA in the works.... 97 GMC Ext. Cab 502 Crate 5 Spd......Sucks Gas But Haulz Azz ! The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic. *"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!*



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