I finally got tired of the cracked push rivets in the radiator support to grille trim cover.
The salvage trucks are pretty well picked for these kind of parts and the ones that are there are broken.
For those of you that don't want to pay $1.38 each for (GM 21030249) 8mm push rivets that hold various covers in place...
A bag of 100 costs $6.70 on Amazon with Prime shipping.
https://www.amazon.com/gp/product/B0040CYWX0
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1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8
RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.