Year identification from frame VIN?
 

22z126957
... is stamped on top of driver’s frame rail near engine. From what I could find, last 6 are vin, z is plant, second 2 should mean 1972 but the first 2 should be model but 2 is not listed anywhere. Am I reading this right?

Frame is long, 5 lug and leaf spring rear.
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Re: Year identification from frame VIN?
 

Striking error. Can't erase. Guy hit 2 twice.
["... Is this thing on? Oops. Oh yeah. Oh well. Maybe the supervisor won't catch it. TGIF...]
Of course '72 was the year GM added an extra letter to the full VIN, so maybe he got carried away. IDK.