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Old 03-30-2026, 06:28 PM   #1
GOPAPA
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Anyone have records about my 1983 K10 Truck

that is a 4 wheel drive short bed, manual transmission muncie ,,, that can tell me how many were made?
Or what is the ratio of the same truck above between Automatic and manual made.

I am thinking that the truck discribed above being a factory manual 4 speed is rare compared to the automatic

Your thoughts appreciated
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Old 03-31-2026, 01:50 PM   #2
Keith Seymore
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Re: Anyone have records about my 1983 K10 Truck

Can you be more specific about which "Muncie" you speak about?

If it is a passenger car type 4 speed then you would have the only one.

The actual two choices for 1983 would the SM465 RPO M20, which is the three forward gears plus a creeper (low).

The other is the MY6 New Process overdrive trans, which was a MOPAR trans with third geared 1:1 and fourth gear as an overdrive.

I am not aware of any official production records for 1983* but if it's the M20 we made several hundred thousand (probably 1/4 to 3/8 of all K10 production).

The MY6 would be more rare but still it's a regular production option so we built more than a few.

K

*I always say that and then somebody will pop in with some production volumes that I did not know existed.
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Old 03-31-2026, 01:52 PM   #3
Keith Seymore
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Re: Anyone have records about my 1983 K10 Truck

Generic info packet from the GM Heritage Center archive for '83 pickup:

https://www.gm.com/content/dam/compa...olet-Truck.pdf
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Old 03-31-2026, 09:25 PM   #4
GOPAPA
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Re: Anyone have records about my 1983 K10 Truck

Quote:
Originally Posted by Keith Seymore View Post
Can you be more specific about which "Muncie" you speak about?

If it is a passenger car type 4 speed then you would have the only one.

The actual two choices for 1983 would the SM465 RPO M20, which is the three forward gears plus a creeper (low).

The other is the MY6 New Process overdrive trans, which was a MOPAR trans with third geared 1:1 and fourth gear as an overdrive.

I am not aware of any official production records for 1983* but if it's the M20 we made several hundred thousand (probably 1/4 to 3/8 of all K10 production).

The MY6 would be more rare but still it's a regular production option so we built more than a few.

K

*I always say that and then somebody will pop in with some production volumes that I did not know existed.
\\

So.. with the numbers you mention above about 1/4 to 3/8 of all the k10s having the M20 transmissions in them ,,I can assume that my truck being a short bed 1/2 ton would make the ratio even lesser than 1/4 to 3/8s ,,AND I think I can advertise it to sell as a rare build from the factory ,,

I have to add this onto my reply as this morning the 2nd of April I have been up since 5 am until now looking at all the info you shared with me (and others who read this can see it also ) thank you very much .. I have learned a lot from all this...
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Old 03-31-2026, 02:31 PM   #5
GOPAPA
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Re: Anyone have records about my 1983 K10 Truck

Thank you Keith ,, you have given me all I need to know and then some.. the manual Transmission is the 465 Muncie that you mention above
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