Quote:
Originally Posted by mr.mud1
my 72 402 Cheyenne Super,built at the Fremont plant in Sept 71,has a TKX engine with no air pump or any other emissions equipment that i've found.it does say on the build sheet VJ9 Emission label,TF5 Cal Assy Emission and a YF6 Cal Proc Option? but there isn't or wasn't any emission equipment on it.
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Seem to remember something about your truck coming from the USA. Your truck is a utility vehicle with a higher load rating, a Suburban is a passenger vehicle. My first 72, a K20 truck had no smog as well. Was born here in Ca. My current 72 K10 had smog due to lower weight rating but was removed years ago due to living in a county that does not have emissions testing. All the burbs would have smog here in Ca.