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#1 |
Account Suspended
Join Date: Apr 2008
Location: Hesperia, Ca
Posts: 1,332
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Speedometer w/ Trip Meter
Anybody know if GM offered a cable-driven speedometer with a trip meter?
The speedo in my '84 is going bad and I'd like to replace it with a trip-meter equipped unit if possible. |
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#2 |
Slots go on anything!
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
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Re: Speedometer w/ Trip Meter
88 and 89 R/V body.
__________________
1974 Jimmy- 5.3/4L80e/NP241 |
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#3 |
Account Suspended
Join Date: Apr 2008
Location: Hesperia, Ca
Posts: 1,332
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Re: Speedometer w/ Trip Meter
Were those still cable driven? For some reason, I thought they all went electronic with the introduction of TBI.
I know the speedo on my '84 has that goofy little optical "eye". Do the 88+ speedos still have that? |
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#4 |
Slots go on anything!
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
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Re: Speedometer w/ Trip Meter
Yeah. Those are cable driven. The '88 speedo will have exactly the same font as your original speedo; the 89 (and some 90 2wd) will have more hash marks between the numbers. The electric speedo came about with the change to the 4L80E (I think). The early TBI used the same VSS that you have that utilized the light pulses reflecting from the back of the speedometer drum.
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1974 Jimmy- 5.3/4L80e/NP241 |
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#5 |
Account Suspended
Join Date: Apr 2008
Location: Hesperia, Ca
Posts: 1,332
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Re: Speedometer w/ Trip Meter
Okay, cool. Thanks!
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#6 |
Getting Old; Going Broke
Join Date: Apr 2010
Location: Owasso OK
Posts: 2,764
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Re: Speedometer w/ Trip Meter
I *think* when they switched to the electronic speedometer they also switched to 6 digit odometer plus the tenth. 88 and 89 R and V trucks plus the K5's had the option of a trip meter and were still 5 digit odometer plus the tenth. I know the speedo in my 87 R10 is from an 89 Suburban and it has a trip meter and 5 digit odometer.
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Why is every used 350 sbc out of a corvette? There's only two things that excite a man, expensive toys and real expensive toys. VEGETARIAN: That's an old Indian word meaning "I don't hunt so good." When the going gets tough, switch to power tools. |
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#7 |
Registered User
Join Date: May 2012
Location: Colo Springs, CO
Posts: 870
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Re: Speedometer w/ Trip Meter
I think that the high beam on the 88-89 are a single, blue dot vs. a dual dot on the older ones. There is the little "eye" on the back as well that is used for your cruise and for later years, speed pulse for the computer.
90 and 91 are electronic and can be identified easily with the additional hash marks between the numbers. It should also say "Quartz" on the face too. I converted my 89' cable driven to a 91' electric. Here are the two side by side....
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- Jeff 89' K5 Blazer, 2.5" lift, 35" tires ![]() 04' GMC Yukon XL, 3/4 ton, 8.1L |
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#8 |
78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: Speedometer w/ Trip Meter
my 88 is like that,can't remember if the 89 was too
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
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#9 |
Registered User
Join Date: Mar 2012
Location: Woodbury, Ct.
Posts: 1,680
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Re: Speedometer w/ Trip Meter
So your saying this came out of an '88..I thought I pulled it out of an '85 sub..Well it doesn't matter the darn trip meter doesn't work correctly anyway. |
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#10 |
78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: Speedometer w/ Trip Meter
my 88
and 79 compared diff speedo mounts... 88 should have a OD shifter too...tranny blew so a 350 went in
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
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