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1986 350 Vin Code L or M
Anybody know what the difference in the Vin Code L or M on a Chevy or Gmc with a 350?
Does it mean Heavy Duty or Light Duty vehicle service for usage/cam/cooling/transmission, etc...?
Or is it, Califorina Emmissions or Federal Emissions?
I have heard it as CA Emmisions or FED, but not sure if they also mean Light Duty Vehicle Service or Heavy Duty.
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