I currently own two 1983 Z28s. Both were made at the same plant, Norwood. But in the VIN one has HD8 and the other has HDX. I am wondering what the difference is. I ran the VINs on the VIN check here, and got the same results. Both are 1983 Z28s, made at Norwood. The only difference I know of between the two cars is the car with the HD8 VIN has a 700R4 and the other has a 5 speed. I am just wondering if that is the difference or there is something else.

 

There is a check digit in the VIN that varies with each car. I am not sure which digit it is. There is nothing in the VIN that tells you which transmission a car has. If you post the first 10 digits of each VIN I can tell you more.

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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

First car is 1G1AP87HDN146402
This one has t-tops, automatic trans, air conditioning.

Second car is 1G1AP87HXDN144103
This is basic bare minimum package it appears. No air, no t-tops, stickshift.