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03-09-2009, 03:35 PM
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#1 |
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Registered User
Join Date: May 2008
Location: metro Atlanta, Ga.
Posts: 196
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speedometer gears
My 75 c-10 has a 250-6 cyl. with a 350 turbo. don't know the gears in the rearend. can anybody tell me what tooth speedometer gear i need to replace mine, it is stripped i guess. my speedometer quit. I thought it was the cable, but disconected it at the trans. and turned the cable and the speedometer needle worked with no problem. would it tell me what tooth it is if i take it out ? or does somebody know without taking it out? any help guys ? thanks, Art
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Art 1975 c-10 stepper 1978 single cab dually 1987 crewcab dually 1986 crewcab single wheel 1948 anglia- (the dixie twister super gas) |
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03-09-2009, 04:12 PM
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#2 |
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The One And Only !!!
Join Date: Jan 2007
Location: Hole in the woods Florida
Posts: 4,567
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Re: speedometer gears
Art,
The different speedo gears are designated by the color of the gear, Remove the gear and take it with you to get a replacement. We all know how these punk kids can be in these chain parts stores....
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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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03-09-2009, 06:56 PM
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#3 |
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BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Re: speedometer gears
Use this calculator to find your ratio. Look for a combo closest to a whole number.
http://www.tciauto.com/Products/Tech...eedo_gears.asp |
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03-09-2009, 10:27 PM
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#4 |
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In the Forgotten far North.
 
Join Date: Jul 2007
Location: Anchorage, Alaska
Posts: 2,627
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Re: speedometer gears
#1 You won't find the gears at any auto parts store.
#2 Any reputable auto tranny shop should be able to help you out. #3 Check out this websight http://www.transmissioncenter.net/sp...n_______va.htm to find out what speedo gears you need
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1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade |
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03-09-2009, 11:55 PM
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#5 |
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Registered User
Join Date: Feb 2007
Location: Austin, TX
Posts: 3,930
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Re: speedometer gears
I just went to my local dealer and they were able to get me a gear for my Turbo 350. I brought in the part number I needed, and when I first told the parts guy what I wanted he began to tell me they weren't made anymore, but he punched the number in and they were able to have it for me the next day. You gotta have the part number, or else you won't get anywhere.
http://www.novaresource.org/speedo.htm http://chevelleengineer.home.comcast...eer/speedo.htm
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1977 GMC Sierra Grande |
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03-10-2009, 02:55 PM
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#6 |
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Registered User
Join Date: May 2008
Location: metro Atlanta, Ga.
Posts: 196
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Re: speedometer gears
thanks guys. Art
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Art 1975 c-10 stepper 1978 single cab dually 1987 crewcab dually 1986 crewcab single wheel 1948 anglia- (the dixie twister super gas) |
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