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11-18-2019, 02:34 PM
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#1 |
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Registered User
Join Date: Feb 2013
Location: Cottonwood, Arizona
Posts: 1,388
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Speedometer question
The speedometer in my 84 GMC 2500 doesn't work, so I hooked the trans end to my cordless drill and turned it that way, slowly, and it works. Could it be the plastic gear in the trans that is bad? If so, how do I replace it?
Thanks |
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11-18-2019, 04:33 PM
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#2 |
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Post Whore
  
Join Date: May 2015
Location: Alabama
Posts: 14,686
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Re: Speedometer question
Could be the drive gear..
What trans do you have?
__________________
Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
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11-18-2019, 05:36 PM
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#3 |
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Moderator
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 5,020
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Re: Speedometer question
Pull the driven gear and take a look.
If the driven gear is chewed get a look at the drive gear on the tailshaft.
__________________
1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. |
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11-18-2019, 10:23 PM
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#4 |
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Registered User
Join Date: Feb 2013
Location: Cottonwood, Arizona
Posts: 1,388
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Re: Speedometer question
Sorry guys.
As mentioned my truck is an 84 GMC C2500. I forgot to mention what engine and trans, so here they are: 350, and a TH400 |
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