When did odometers change from 99,999 to 999,999 (ie hundred thou digit included)? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**jocko** · 01-22-2018, 04:44 PM

Did an odometer with a 100k digit come out in square era (and when) or was that first seen in GMT400s? Or, more specifically - did an 86 have a 99,999 or 999,999 odometer?
Thanks.

**lolife99** · 01-22-2018, 05:05 PM

I believe they change to the 100k odometers in the 1988 model year when they introduced the CK model trucks.

obijuan · 01-22-2018, 05:35 PM

I have some 1984 clusters with 6 digit odometer. Diesel trucks.

GM72K10 · 01-22-2018, 05:57 PM

Quote:

Originally Posted by obijuan

I have some 1984 clusters with 6 digit odometer. Diesel trucks.

Me too. An 86 to be exact. K30

**jocko** · 01-22-2018, 06:45 PM

Just to be certain, you’re talking 6 digits not including 10th’s of a mile - so 1st digit is the hundred thousands digit, as in 100k, 200k, etc?

Or, are you mentioning to highlight that diesels went to hundred thousands odometers before gas trucks did?

obijuan · 01-22-2018, 06:50 PM

I don't know if diesel mattered. I just know the year of these trucks I had with million mile odometer.
My 91 gasser has 6 digit as well.

**jocko** · 01-22-2018, 07:06 PM

thats what I needed to know, thx!
If, by chance, it was a diesel only thing - someone please chime in. But I can’t imagine it would be either.

44th Miss Inf · 01-22-2018, 10:55 PM

My 84 k10 came factory with 6.2 but only 5 numbers.

The cluster above is out of about s 2 ton truck, as it has the air gauge, so wondering if that makes a difference from the 1 ton and down?

donw1986 · 01-23-2018, 01:52 AM

I have an 86 gas, came with 5 digits 99999.0

dieseldawg142 · 01-23-2018, 02:18 AM

Quote:

Originally Posted by GM72K10

Me too. An 86 to be exact. K30

does your gauge have Kilometers on it?
dont know about diesel trucks having 6 digits, but i notice all the 6 digits i have seen so far have been metric and imperial. notice obijuan's is metric too.
my '85 K30 has 6 digits too, and it's metric, and it's orig to the truck. i changed the 4 small gauges, and the instrument cluster had never been out or touched
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**jocko** · 01-23-2018, 08:02 AM

Interesting. Thanks for all the replies.

**Ol Blue K20** · 01-23-2018, 11:43 AM

My 89 V3500 has the 5 digit odometer. My 90 suburban (parts truck) has the million mile odometer. The million mile odometer is also an electronic speedo.

Rubble · 01-23-2018, 04:00 PM

Might just be a metric or Canadian thing,but we've had 6 digit odometers since about 83. My old 82 diesel was 5 & the 83 C20 gasser is 6. Its original too

01-22-2018, 04:44 PM	#1
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	When did odometers change from 99,999 to 999,999 (ie hundred thou digit included)? Did an odometer with a 100k digit come out in square era (and when) or was that first seen in GMT400s? Or, more specifically - did an 86 have a 99,999 or 999,999 odometer? Thanks.

01-22-2018, 05:05 PM	#2
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: When did odometers change from 99,999 to 999,999 (ie hundred thou digit included) I believe they change to the 100k odometers in the 1988 model year when they introduced the CK model trucks. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

01-22-2018, 05:35 PM	#3
obijuan Registered User Join Date: Jun 2012 Location: cibolo tx Posts: 1,033	Re: When did odometers change from 99,999 to 999,999 (ie hundred thou digit included) I have some 1984 clusters with 6 digit odometer. Diesel trucks. __________________ 1985 k5 396/nv4500/203/205 d60/d70 4.56 42 sx2 1991 V3500 350/4l80/205 60/14 4.10 35 toyos.

01-22-2018, 06:45 PM	#5
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	Re: When did odometers change from 99,999 to 999,999 (ie hundred thou digit included) Just to be certain, you’re talking 6 digits not including 10th’s of a mile - so 1st digit is the hundred thousands digit, as in 100k, 200k, etc? Or, are you mentioning to highlight that diesels went to hundred thousands odometers before gas trucks did?

01-22-2018, 06:50 PM	#6
obijuan Registered User Join Date: Jun 2012 Location: cibolo tx Posts: 1,033	Re: When did odometers change from 99,999 to 999,999 (ie hundred thou digit included) I don't know if diesel mattered. I just know the year of these trucks I had with million mile odometer. My 91 gasser has 6 digit as well. Attached Images __________________ 1985 k5 396/nv4500/203/205 d60/d70 4.56 42 sx2 1991 V3500 350/4l80/205 60/14 4.10 35 toyos. Last edited by obijuan; 01-22-2018 at 07:00 PM.

01-22-2018, 07:06 PM	#7
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	Re: When did odometers change from 99,999 to 999,999 (ie hundred thou digit included) thats what I needed to know, thx! If, by chance, it was a diesel only thing - someone please chime in. But I can’t imagine it would be either.

01-22-2018, 10:55 PM	#8
44th Miss Inf Registered User Join Date: Sep 2002 Location: Liberty, Mississippi Posts: 672	Re: When did odometers change from 99,999 to 999,999 (ie hundred thou digit included) My 84 k10 came factory with 6.2 but only 5 numbers. The cluster above is out of about s 2 ton truck, as it has the air gauge, so wondering if that makes a difference from the 1 ton and down?

01-23-2018, 01:52 AM	#9
donw1986 Registered User Join Date: Oct 2012 Location: Santa Clarita CA Posts: 80	Re: When did odometers change from 99,999 to 999,999 (ie hundred thou digit included) I have an 86 gas, came with 5 digits 99999.0

01-23-2018, 08:02 AM	#11
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	Re: When did odometers change from 99,999 to 999,999 (ie hundred thou digit included) Interesting. Thanks for all the replies.

01-23-2018, 11:43 AM	#12
Ol Blue K20 Proprietor of Dale's Corner Join Date: Nov 2012 Location: Vacaville , CA Posts: 16,245	Re: When did odometers change from 99,999 to 999,999 (ie hundred thou digit included) My 89 V3500 has the 5 digit odometer. My 90 suburban (parts truck) has the million mile odometer. The million mile odometer is also an electronic speedo. __________________ "Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man R.I.P. FleetsidePaul

01-23-2018, 04:00 PM	#13
Rubble Registered User Join Date: Feb 2012 Location: Big Valley. Alberta Posts: 674	Re: When did odometers change from 99,999 to 999,999 (ie hundred thou digit included) Might just be a metric or Canadian thing,but we've had 6 digit odometers since about 83. My old 82 diesel was 5 & the 83 C20 gasser is 6. Its original too __________________ 1977 Chev C30 454/465/14ff DRW 1974 Chev C20.350/465/14ff " Rock n Roll ain't noise pollution"

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