When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Browzing around Larry's wonderful 1971 Corvette Registry tonight got me to looking at my date codes on my glass. Here is what I have:
Driver side VT
Pass side NN (only one that makes sense)
Rear win TT
Was it common to have a car off the assembly line with diferent date codes all the way around? TT and VT don't even show up on Larry's list for 71. What months are those?
Driver side VT
Pass side NN (only one that makes sense)
Rear win TT
Was it common to have a car off the assembly line with diferent date codes all the way around? TT and VT don't even show up on Larry's list for 71. What months are those?
The "T" year code is for 1970... "V" is December and "T" is August which are both relatively late in the 1970 calendar year and actually occur during the 1971 model year. It's not uncommon to have different dates as long as they fall within a few months of the assembly date of the car (NCRS and Bloomington Gold allow a one year time span - your glass is well within that range). The glass should be LOF brand; Safety Flo-Lite for the side glass (tinted, with the "Astro Ventilation" script) and the rear window should be LOF Safety Plate (also tinted).
I realize that you didn't ask about the windshield (both of mine have been replaced as well - after 30 years they have usually taken a beating), but I'll pass this along. For early 1971s (to about VIN 5000), the glass should be LOF Safety Plate... After that VIN you see the appearance of Safety Flo-Lite (both tinted - tinted glass became standard with the 1970 model year).
The dates for your door and rear glass look OK to me! :)