The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - What can be said about the 4-speed New Process NV833 overdrive manual transmission?

D13 · 12-21-2015, 09:56 PM

Keith is right on with the partial VIN (required by law) and the part number.

The last 4 digits are Julian date of manufacture of the trans.
326 0 is 326th day of year '0', probably 1980
127 1 is 127th day of 1981

All GM trans' of that vintage are marked this way.
Now I'll have to look at mine to see when it was made.

I would expect Keiths' to have a high Julian '6' trans date.

12-21-2015, 09:56 PM	#100
D13 Registered User Join Date: Feb 2007 Location: Memphis MI Posts: 1,851	Re: What can be said about the 4-speed New Process NV833 overdrive manual transmissio Keith is right on with the partial VIN (required by law) and the part number. The last 4 digits are Julian date of manufacture of the trans. 326 0 is 326th day of year '0', probably 1980 127 1 is 127th day of 1981 All GM trans' of that vintage are marked this way. Now I'll have to look at mine to see when it was made. I would expect Keiths' to have a high Julian '6' trans date. __________________ 1987 2 ton 1982 250/TH350 beater in progress Dad's 1981 3/4 L6 3 on tree posi and no options, awaiting restoration or scrapping Plus a mess o' tractors