speed cable - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Big Blue · 05-25-2010, 09:16 PM

Hi Floks, New Help on a speed cable.
I have a 79 th350. Cluster goes to 100 mph, may not mean antything, thought i mention it. I don't have my speed od working. I checked the cluster, but did not check the gears on the trans yet. Here is the questions!

How long is the th350 cable??? The one that is in it is 43 1/2 inches long, with a white tip on it. That part goes into the cluster.

What color should the 350 gears be at the trans if I have a cluster that read 100 mph?

Thanks for the help.

John

Big Blue · 05-26-2010, 07:24 PM

Just bringing it to the top.
Need Help on this. Inspection comming up soon.

John

mbgmike · 05-26-2010, 07:39 PM

try these guys

usually you can buy gear at dealer

http://www.transmissioncenter.net/sp...n_______va.htm

68Timber · 05-26-2010, 08:25 PM

Is it not working at all?

If it's not working at all, unscrew it from the tranny and put a drill on the cable. Have someone check the other end. If it doesn't move the speedo needle, disconnect the cable from the cluster and have them check that end of the cable while you turn it with the drill.

I haven't had this problem in a long time, but it seems like there's two cables junctioned together on a Blazer between the tranny and speedo, that may or may not be the case on a pickup. But it's a very simple way to check.

Good luck with it.

Big Blue · 05-26-2010, 08:28 PM

Thanks mbgmike, I booked marked that site for future references.

John

Big Blue · 05-26-2010, 08:34 PM

Thanks BRUISER,
Naw,, its not working at all. It didn't work for the last two years. The last time the inspection guy said that if I don't have any miles on it he will not inspect it. Can't have that. I installed a lift in my garage and the only thing that was in it were fords. I need truck extenders to get my truck up in the air. I will do as you suggested. I may have to visit the site that mbgmike suggested.

Thanks all again, John

68Timber · 05-26-2010, 08:51 PM

When you unscrew the cable from the tranny there will be an inch or two sticking out. Just tighten your drill tip down on the cable and spin it while someone watches the other end. You can find the point of failure pretty quick that way. It happened to me once and turned out to be a broken cable.

Big Blue · 05-26-2010, 09:11 PM

I pulled the cable out and it is intack. That is why I think it is the gears.
I was just wondering if the right gears are in. Since I put this trans in after buying it on e-bay. The truck is a 2wd, automatic. The old speed od worked but bounced around a little. Then I put the trans in as i mentioned above.
What I thought of doing is going to my local yard and pulling everything from cluster,cable,housing and gears from trans. Thanks again,

John

68Timber · 05-26-2010, 09:23 PM

I'd still put the drill on the cable and spin it up. That's the only way to find out if the cable is broken in the housing somewhere inbetween. It does happen.

Big Blue · 05-26-2010, 09:27 PM

Will do, Thanks

John

05-25-2010, 09:16 PM	#1
Big Blue Registered User Join Date: Feb 2005 Location: Northeast--Bethlehem, Pennslyvania Posts: 642	speed cable Hi Floks, New Help on a speed cable. I have a 79 th350. Cluster goes to 100 mph, may not mean antything, thought i mention it. I don't have my speed od working. I checked the cluster, but did not check the gears on the trans yet. Here is the questions! How long is the th350 cable??? The one that is in it is 43 1/2 inches long, with a white tip on it. That part goes into the cluster. What color should the 350 gears be at the trans if I have a cluster that read 100 mph? Thanks for the help. John __________________ Big Blue ( John ) 79 Chevy Pick up.....My Dailey STILL Working on a frame up: 1987 Truck body on a 78 Blazer frame. Need cab blasted to start project. Got the cab BLASTED, Now Prep and Paint. Started to lay SOME BONDO and primer. Done, Ordering paint. Got paint, Stuff painted,Cab,Fenders, Hood more later. 9/7/2015 Got the clear coat on,now time to take one off. Started to put things back (What a nightmare) like the heating and AC stuff,inside wire harness, outside AC unit and booster, still more. May 2016, still working on the inside. Got duck work in,heating and AC. Radio (stock) in dash with after market in console later, Speaker are hooked up, Steering column is in. Getting ready to drop the cab onto the frame, Working on engine now since I have the room. Well here it is 2018, got the engine in and it runs, now I need to get the exhaust system in so I can adjust the lifters, to loud right now. Got the exhaust on now I am waiting for the break parts to come in.

05-26-2010, 07:24 PM	#2
Big Blue Registered User Join Date: Feb 2005 Location: Northeast--Bethlehem, Pennslyvania Posts: 642	Re: speed cable Just bringing it to the top. Need Help on this. Inspection comming up soon. John __________________ Big Blue ( John ) 79 Chevy Pick up.....My Dailey STILL Working on a frame up: 1987 Truck body on a 78 Blazer frame. Need cab blasted to start project. Got the cab BLASTED, Now Prep and Paint. Started to lay SOME BONDO and primer. Done, Ordering paint. Got paint, Stuff painted,Cab,Fenders, Hood more later. 9/7/2015 Got the clear coat on,now time to take one off. Started to put things back (What a nightmare) like the heating and AC stuff,inside wire harness, outside AC unit and booster, still more. May 2016, still working on the inside. Got duck work in,heating and AC. Radio (stock) in dash with after market in console later, Speaker are hooked up, Steering column is in. Getting ready to drop the cab onto the frame, Working on engine now since I have the room. Well here it is 2018, got the engine in and it runs, now I need to get the exhaust system in so I can adjust the lifters, to loud right now. Got the exhaust on now I am waiting for the break parts to come in.

05-26-2010, 07:39 PM	#3
mbgmike Registered User Join Date: Aug 2005 Location: Pasadena,Tx /Pto Pta DR Posts: 5,415	Re: speed cable try these guys usually you can buy gear at dealer http://www.transmissioncenter.net/sp...n_______va.htm

05-26-2010, 08:25 PM	#4
68Timber I know the pieces fit Join Date: Nov 2007 Location: MONTGOMERY, AL Posts: 5,523	Re: speed cable Is it not working at all? If it's not working at all, unscrew it from the tranny and put a drill on the cable. Have someone check the other end. If it doesn't move the speedo needle, disconnect the cable from the cluster and have them check that end of the cable while you turn it with the drill. I haven't had this problem in a long time, but it seems like there's two cables junctioned together on a Blazer between the tranny and speedo, that may or may not be the case on a pickup. But it's a very simple way to check. Good luck with it. __________________ John 79 2wd Blazer (Bruiser) 85 M1009 Blazer (Sarge) build 74 Honda Z50 build

05-26-2010, 08:28 PM	#5
Big Blue Registered User Join Date: Feb 2005 Location: Northeast--Bethlehem, Pennslyvania Posts: 642	Re: speed cable Thanks mbgmike, I booked marked that site for future references. John __________________ Big Blue ( John ) 79 Chevy Pick up.....My Dailey STILL Working on a frame up: 1987 Truck body on a 78 Blazer frame. Need cab blasted to start project. Got the cab BLASTED, Now Prep and Paint. Started to lay SOME BONDO and primer. Done, Ordering paint. Got paint, Stuff painted,Cab,Fenders, Hood more later. 9/7/2015 Got the clear coat on,now time to take one off. Started to put things back (What a nightmare) like the heating and AC stuff,inside wire harness, outside AC unit and booster, still more. May 2016, still working on the inside. Got duck work in,heating and AC. Radio (stock) in dash with after market in console later, Speaker are hooked up, Steering column is in. Getting ready to drop the cab onto the frame, Working on engine now since I have the room. Well here it is 2018, got the engine in and it runs, now I need to get the exhaust system in so I can adjust the lifters, to loud right now. Got the exhaust on now I am waiting for the break parts to come in.

05-26-2010, 08:34 PM	#6
Big Blue Registered User Join Date: Feb 2005 Location: Northeast--Bethlehem, Pennslyvania Posts: 642	Re: speed cable Thanks BRUISER, Naw,, its not working at all. It didn't work for the last two years. The last time the inspection guy said that if I don't have any miles on it he will not inspect it. Can't have that. I installed a lift in my garage and the only thing that was in it were fords. I need truck extenders to get my truck up in the air. I will do as you suggested. I may have to visit the site that mbgmike suggested. Thanks all again, John __________________ Big Blue ( John ) 79 Chevy Pick up.....My Dailey STILL Working on a frame up: 1987 Truck body on a 78 Blazer frame. Need cab blasted to start project. Got the cab BLASTED, Now Prep and Paint. Started to lay SOME BONDO and primer. Done, Ordering paint. Got paint, Stuff painted,Cab,Fenders, Hood more later. 9/7/2015 Got the clear coat on,now time to take one off. Started to put things back (What a nightmare) like the heating and AC stuff,inside wire harness, outside AC unit and booster, still more. May 2016, still working on the inside. Got duck work in,heating and AC. Radio (stock) in dash with after market in console later, Speaker are hooked up, Steering column is in. Getting ready to drop the cab onto the frame, Working on engine now since I have the room. Well here it is 2018, got the engine in and it runs, now I need to get the exhaust system in so I can adjust the lifters, to loud right now. Got the exhaust on now I am waiting for the break parts to come in.

05-26-2010, 08:51 PM	#7
68Timber I know the pieces fit Join Date: Nov 2007 Location: MONTGOMERY, AL Posts: 5,523	Re: speed cable When you unscrew the cable from the tranny there will be an inch or two sticking out. Just tighten your drill tip down on the cable and spin it while someone watches the other end. You can find the point of failure pretty quick that way. It happened to me once and turned out to be a broken cable. __________________ John 79 2wd Blazer (Bruiser) 85 M1009 Blazer (Sarge) build 74 Honda Z50 build

05-26-2010, 09:11 PM	#8
Big Blue Registered User Join Date: Feb 2005 Location: Northeast--Bethlehem, Pennslyvania Posts: 642	Re: speed cable I pulled the cable out and it is intack. That is why I think it is the gears. I was just wondering if the right gears are in. Since I put this trans in after buying it on e-bay. The truck is a 2wd, automatic. The old speed od worked but bounced around a little. Then I put the trans in as i mentioned above. What I thought of doing is going to my local yard and pulling everything from cluster,cable,housing and gears from trans. Thanks again, John __________________ Big Blue ( John ) 79 Chevy Pick up.....My Dailey STILL Working on a frame up: 1987 Truck body on a 78 Blazer frame. Need cab blasted to start project. Got the cab BLASTED, Now Prep and Paint. Started to lay SOME BONDO and primer. Done, Ordering paint. Got paint, Stuff painted,Cab,Fenders, Hood more later. 9/7/2015 Got the clear coat on,now time to take one off. Started to put things back (What a nightmare) like the heating and AC stuff,inside wire harness, outside AC unit and booster, still more. May 2016, still working on the inside. Got duck work in,heating and AC. Radio (stock) in dash with after market in console later, Speaker are hooked up, Steering column is in. Getting ready to drop the cab onto the frame, Working on engine now since I have the room. Well here it is 2018, got the engine in and it runs, now I need to get the exhaust system in so I can adjust the lifters, to loud right now. Got the exhaust on now I am waiting for the break parts to come in.

05-26-2010, 09:23 PM	#9
68Timber I know the pieces fit Join Date: Nov 2007 Location: MONTGOMERY, AL Posts: 5,523	Re: speed cable I'd still put the drill on the cable and spin it up. That's the only way to find out if the cable is broken in the housing somewhere inbetween. It does happen. __________________ John 79 2wd Blazer (Bruiser) 85 M1009 Blazer (Sarge) build 74 Honda Z50 build

05-26-2010, 09:27 PM	#10
Big Blue Registered User Join Date: Feb 2005 Location: Northeast--Bethlehem, Pennslyvania Posts: 642	Re: speed cable Will do, Thanks John __________________ Big Blue ( John ) 79 Chevy Pick up.....My Dailey STILL Working on a frame up: 1987 Truck body on a 78 Blazer frame. Need cab blasted to start project. Got the cab BLASTED, Now Prep and Paint. Started to lay SOME BONDO and primer. Done, Ordering paint. Got paint, Stuff painted,Cab,Fenders, Hood more later. 9/7/2015 Got the clear coat on,now time to take one off. Started to put things back (What a nightmare) like the heating and AC stuff,inside wire harness, outside AC unit and booster, still more. May 2016, still working on the inside. Got duck work in,heating and AC. Radio (stock) in dash with after market in console later, Speaker are hooked up, Steering column is in. Getting ready to drop the cab onto the frame, Working on engine now since I have the room. Well here it is 2018, got the engine in and it runs, now I need to get the exhaust system in so I can adjust the lifters, to loud right now. Got the exhaust on now I am waiting for the break parts to come in.



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