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#94464 01/31/2006 11:02 AM | Joined: Oct 2005 Posts: 688 Shop Shark | | Shop Shark Joined: Oct 2005 Posts: 688 | Hey Guys, I have been having trouble with my speedo so I broke down a bought a new one from ChevyDuty. My question is... are these things calabrated How do I know if I am really going 55 ?
cliff59 | | |
#94465 01/31/2006 2:52 PM | Joined: Oct 2002 Posts: 4,066 Bolter | | Bolter Joined: Oct 2002 Posts: 4,066 | you could check it against how long it takes you to go a mile,,dont know if it is calabrated or not,,,good luck ,,,,Fred
Redryder pixMy HotrodA veteran - whether active duty, retired, national guard, or reserve - is someone who, at one point in his or her life, wrote a blank check made payable to The 'United States of America', for an amount of "up to and including my life."I am fighting cancer and I am winning the fight | Pain is part of life; misery is an option. | | |
#94466 01/31/2006 8:17 PM | Joined: Nov 2005 Posts: 248 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2005 Posts: 248 | I check mine against a GPS while I'm driving. Probably not accurate down to fractions of a mph, but good enough for me to get an idea of how accurate my speedo is. | | |
#94467 01/31/2006 8:34 PM | Joined: Apr 2002 Posts: 1,571 Shop Shark | | Shop Shark Joined: Apr 2002 Posts: 1,571 | A rebuilt speedo had better be calibrated... Use a stopwatch and time it off mile markers on the highway - good way to tell if you're close. | | |
#94468 01/31/2006 11:11 PM | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | The speedo head is usually calibrated. Sometimes the trans. drive is off. Check the odometer against the mile markers on the freeway.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
#94469 02/01/2006 12:21 AM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | Speedometer heads should be calibrated to read 60 MPH at 1000 rpm on the cable.
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A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
#94470 02/01/2006 12:55 PM | Joined: Oct 2005 Posts: 688 Shop Shark | | Shop Shark Joined: Oct 2005 Posts: 688 | Ok, I bet the trans. drive IS off.....So how do I fix it? I bet Im gonna have to go to another section of the forum!
Cliff59 | | |
#94471 02/01/2006 2:08 PM | Joined: Feb 2001 Posts: 4,095 'Bolter | | 'Bolter Joined: Feb 2001 Posts: 4,095 | there is a company that offers a trans adapter but i can't find the name. someone on the site has it or go to search and find it. not cheap i think about 150.00. ron
Ron, The Computer Greek I love therefore I am.1954 3100 Chevy truckIn the Gallery 2017 Buick Encore See more pix1960 MGA Roadster Sold 7/18/2017
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#94472 02/01/2006 3:56 PM | Joined: Oct 2002 Posts: 4,066 Bolter | | Bolter Joined: Oct 2002 Posts: 4,066 | Ron, I may be incorrect but I think that adapter is for converting electronic to standard,,your s-10 transmission may need one, that is why I went to earlier s-10,,, at any rate , I may be total off base and if so,, just over-look it  Fred
Redryder pixMy HotrodA veteran - whether active duty, retired, national guard, or reserve - is someone who, at one point in his or her life, wrote a blank check made payable to The 'United States of America', for an amount of "up to and including my life."I am fighting cancer and I am winning the fight | Pain is part of life; misery is an option. | | |
#94473 02/01/2006 6:30 PM | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | Cliff, it is calibrated to the truck by changing the drive gear in the transmission. There are several speedometer shops listed in the Ft. Worth yellow pages. | | |
#94474 02/02/2006 12:14 AM | Joined: Sep 2003 Posts: 324 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 324 | I have been told that the speedo head can be calibrated to the speedo gear at the transmission. Just had mine done but haven't checked it yet.
Tom | | |
#94475 02/02/2006 7:44 AM | Joined: Oct 2005 Posts: 688 Shop Shark | | Shop Shark Joined: Oct 2005 Posts: 688 | Hey Cletis,Joker and Fender I will ask you about this again when I see you and the rest of the TX Connection at Decatur!
cliff59 | | |
#94476 02/02/2006 3:49 PM | Joined: Oct 2002 Posts: 4,066 Bolter | | Bolter Joined: Oct 2002 Posts: 4,066 | by then we will forget what lie we told you Fred
Redryder pixMy HotrodA veteran - whether active duty, retired, national guard, or reserve - is someone who, at one point in his or her life, wrote a blank check made payable to The 'United States of America', for an amount of "up to and including my life."I am fighting cancer and I am winning the fight | Pain is part of life; misery is an option. | | |
#94477 02/03/2006 10:14 AM | Joined: Oct 2005 Posts: 688 Shop Shark | | Shop Shark Joined: Oct 2005 Posts: 688 | Stop Fred you are killing me Cliff59 | | |
#94478 02/03/2006 11:16 AM | Joined: Aug 2004 Posts: 1,067 Shop Shark | | Shop Shark Joined: Aug 2004 Posts: 1,067 | Where can you get different drive gears for the transmission, and how would you know what you need?
52 GMC 3/4 ton pickup
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#94479 02/04/2006 2:19 PM | Joined: Sep 2003 Posts: 324 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 324 | I would think that any good speedo shop would be able to calibrate the unit.
Tom | | |
#94480 02/05/2006 6:40 AM | Joined: Apr 2005 Posts: 926 Shop Shark | | Shop Shark Joined: Apr 2005 Posts: 926 | There's an adapter with easily changeable gears that fits between your speedo cable and your tranny. Chevy used 'em on a lot of their 4X4's through the 60's and 70's. Once you hit the wrecking yard and find one,(you might get lucky and find one with the right gears) you can either get replacement gears from a speedo shop or from GM. I have one out in the shop somewhere...
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