interesting ,, my 71 has 72 doors from factory

[yote1234]

has anyone else noticed that the late production blazers in 1971, june build has upgraded to the 1972 door panels and 72 pinch screws at the vents?

[best view]

I think they start releasing the new model in august if that’s correct i think that would be too early but I am no expert

[yote1234]

Originally Posted by best view

I think they start releasing the new model in august if that’s correct i think that would be too early but I am no expert

of all my searching i cant find a 71 built any later than june 71. my june build has the original blue door sticker with the vin# and 72 doors.

[too much stuff]

In those days, sept. was the change over month. I think all of the blazer doors (70,71 and 72) all had a screw under the wing window. Not sure about 69. The earlier ones had a plastic escutcheon with the screw. I think it would be odd for a june 71 blazer to have 72 plastic door panels, but who knows for sure. Alot can happen in over 50years...

[hemi43]

Model change for us (Oshawa Assembly Plant) was always in late July right after summer shutdown.

Maybe OP's doors are not original, or GM decided to do a design change part way through model year. We did this quite often.

Would like to see pics of OP's Huey in his signature.

[low'n slow]

My 70 Jimmy was built in July, it had the screws for the vent windows.

[yote1234]

Originally Posted by hemi43

Model change for us (Oshawa Assembly Plant) was always in late July right after summer shutdown.

Maybe OP's doors are not original, or GM decided to do a design change part way through model year. We did this quite often.

the doors are original to the blazer by proof of the blue door sticker dated 8/71


Would like to see pics of OP's Huey in his signature.

sending pic of my UH-1d

Originally Posted by low'n slow

My 70 Jimmy was built in July, it had the screws for the vent windows.

the assembly plant in Stlouis was shorter of production.

[1970cstblazer]

Please post pics of the doors preferably with both the door panels on and off. It's easy to tell if the doors have been modified to accept 1972 door panels.

[hemi43]

Originally Posted by yote1234

sending pic of my UH-1d

Awesome! Thanks for that.

[yote1234]

Originally Posted by 1970cstblazer

Please post pics of the doors preferably with both the door panels on and off. It's easy to tell if the doors have been modified to accept 1972 door panels.

pics below i seen the date of 6/71 before power washer hit it i will get pics of door panels soon

[yote1234]

this is the correct vin on factory sticker

[DeadheadNM]

Can you post a photo of the screw just below the vent windows?

[Keith Seymore]

I can't comment specifically on these doors, but in general:

We would pull ahead minor changes in detail components if we thought nobody would notice, or if there was not a decrease in value, if the timing worked out and it was convenient to do so. That would be one more thing to not have to worry about when the bigger model change hit and we could cross it off our list.

Things that were "marketable", like an appearance change (interior or exterior, like a new grille or front end appearance), that we could charge more for, or that were specifically tied to a new model via regulations would break point on the model year.

K

[yote1234]

Originally Posted by DeadheadNM

Can you post a photo of the screw just below the vent windows?

will do tomorrow.

Originally Posted by Keith Seymore

I can't comment specifically on these doors, but in general:

We would pull ahead minor changes in detail components if we thought nobody would notice, or if there was not a decrease in value, if the timing worked out and it was convenient to do so. That would be one more thing to not have to worry about when the bigger model change hit and we could cross it off our list.

Things that were "marketable", like an appearance change (interior or exterior, like a new grille or front end appearance), that we could charge more for, or that were specifically tied to a new model via regulations would break point on the model year.

K

interesting thx for chiming in .

[1970cstblazer]

Any updates?

[yote1234]

[QUOTE=1970cstblazer;9272712]Any updates?[/QU
OTE]

i will take pic of door tomorrow.

[yote1234]

[QUOTE=1970cstblazer;9272712]Any updates?[/QU
OTE]

i will take pic of door tomorrow.

[DeadheadNM]

Bump for pics...

[yote1234]

pics keep flipping sideways i will try and fix it

[DeadheadNM]

Did the doors turn out correct for 71?

[yote1234]

Originally Posted by DeadheadNM

Did the doors turn out correct for 71?

they look to have 72 door guts and panels but are on the original 71 door so either it was dressed up with 72 guts and panels from factory or some one took the time and money to change both door guts and panels to over to 72 style not sure? ??????????

[yote1234]

it is a late june 71 build. the last month of the 71 build for the St Louis plant i belive. so it may have been one of the earliest to receive 72 panels and door guts ?? who knows?

[Keith Seymore]

Originally Posted by yote1234

it is a late june 71 build. the last month of the 71 build for the St Louis plant i belive.

Is this documented somewhere?

Normally changeover occurred in late August with the new models starting in September.

Additionally, (normally) the lead plants were the home plants in the SE Michigan area (ie, Pontiac or Flint) with the satellite plants launching after some of the initial problems were ironed out.

Since I have it handy I am posting the chart below which shows a few start/stop times for Pontiac nameplated vehicles.

K

[yote1234]

interesting Keith but i would love to see a 71 blazer build date after 6/71
anyone???

[Richard]

As I see it, the most likely scenario is. In the past 50+ years someone has changed out hardware to accommodate the 72 door panels which they liked more.