My 1970 GMC Sierra Grande

[MusicMan70]

Hello Everybody,

I'd like to share my "new" old truck. A 1970 GMC Sierra Grande . Mostly original except for old headers and glasspacks.


Some Pertinents:
Vin: CE234ZZ53XXX Engine Code: V1017TAX

Original PINK says it was first sold in 1969, but it is a 1970 Model
Door Tag says build date of 10/69

It had a Camper on back which preserved the wood box nicely. Also the tailgate is in beautiful condition. I may be able to buff out the oxidized paint.

Has 350/350 combo with 4:10 Dana 60. 16.5" steelies and caps. Steering wheel is badly deteriorated. I can see the build sheet in the bench seat back spring, as well as some documents in the springs under the seat. Here are some pictures of the truck.

A few questions????
What is option Z-18 GVW?
Do any of the marks on this rim tell me the diameter?
I read it as K 1 9 (November 1, 1969), so does the 10 mean 10" diameter?
(It has 9.50 x 16.5 tires and the rim looks like it would take a bigger tire.)

I'll have to take pics of the interior and post later as I only have video of the inside for now.
Oh, and I busted the bolts that held the Camper mirrors on. I was trying to bring them in so I wouldn't side-swipe anybody/thing. Thanks for looking!