Quote:
Originally Posted by Pampas56
After a quick google search I found this:
YET is 225/75/15 rear tires
ZET is 225/75/15 spare tire
1SA is Option package 01 what that entails is anybody's guess.
6WK and 7WK are Computer selected Suspension LH and RH respectively. I would guess that the factory groups the suspension parts by size or rate and tries to match the components (kinda like piston weights for high performance engines).
Keith Seymour should have the definitive answer over on the square body forum.
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This is correct.
That means XET is 225/75 15 front tires. They are divided up that way in case somebody wanted to get street tires on the front, snow tires on the rear and a different spare.
Generic Info packet from the GM Heritage Center archive is attached. 1SA is the "quick spec" in the dealer order guide. The info packet doesn't call it out the same way but since it is a Work Truck you have a pretty good idea of the content anyway.
https://www.gmheritagecenter.com/doc...olet-Truck.pdf
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