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Old 11-21-2023, 10:51 AM   #7
1970cstblazer
All stock and staying that way
 
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Join Date: Jul 2003
Location: Elkland, PA
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Lightbulb Re: 1970 Grille question.

Quote:
Originally Posted by HalfBrit View Post
Those 2 pics (of the grill) you posted highlight the only thing that bugs me about replacement outer grills: Original - the horizontal lines continue to the headlight buckets. Replacement - the same lines stop at the parking light.
OEM GM dealer replacement outer grilles 3985054 have been that way since June, 1971.

For some reason not easily explained, GM discontinued outer grille 3980036 in favor of the slightly different 3985054, which is what the reproductions were patterned after. Its super easy to spot an assembly line used grille on these.

The NOS grille going on my 1970 is an old one-box is dated June 1978, and unfortunately it is the second design that does not have the black extending all of the way to the satin black steel headlamp bezels/doors.

Also a note on the satin black steel 1969-70 headlight bezels/doors. GM discontinued them very early on in favor for the bright aluminum bezels that were original equipment on all 1971-72 trucks/Blazers/Suburbans. I think the later aluminum bezels/doors look terrible on the 1969-1970's.

3937473 LH changed to 3990705 in 8/1971

3937474 RH changed to 3990706 in 12/1971
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1970 K/5 Blazer CST 4WD, Bronze, 93k ACT. miles, 350, 4 speed, positraction, 16.5" x 8.25" wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration in progress...

1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor...

2017 Sierra 1500 SLT 4WD, Black, 41k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2...

2019 Canyon SLT 4WD, White, 60k miles, 3.6, 8L45, 3.23 LS, 18" wheels
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