Was being a GMC an option???
 

Odd...

Re: Was being a GMC an option???
 

General Motors Corporation?
Garage Man's Companion?

What's Z86, again?

Re: Was being a GMC an option???
 

Give Me Chevy!

Re: Was being a GMC an option???
 

It would be interesting to see the rest of the vehicle...

Re: Was being a GMC an option???
 

Government
Model
Chevrolet

:gmc2:

Looking at the VIN on the SPID, it's a C/50 with a 174'' wheelbase.

Re: Was being a GMC an option???
 

Get More Cash?

I don't see it as GMC since there are periods typed between each letter, I figure, to distinguish from GMC

Re: Was being a GMC an option???
 

I show Z86 as Heavy Duty, 22000# GVW

Z88 is the RPO for GMC Conversion

Re: Was being a GMC an option???
 

Yep.

K

Re: Was being a GMC an option???
 

Is that a 174" wheel base.

Re: Was being a GMC an option???
 

Got Mechanic Coming

Re: Was being a GMC an option???
 

Yes. It's also "incomplete vehicle certification label", so was possibly going to be a bus or something like that.

Re: Was being a GMC an option???
 

Greatest Machine Created :cool:

Re: Was being a GMC an option???
 

Can you expand on that?
This one had a fuel tank on back.

Re: Was being a GMC an option???
 

I'd like to know more on GMC being an option, too.

This is a medium duty cab & chassis and the 174" wheelbase is just a normal WB offered. It's only 15" longer than a 157" WB C/30

Re: Was being a GMC an option???
 

Based on the model number it was just a cab/chassis- an upfitter would put on a dump bed or tanker on the back.
CE56803=
C = conventional cab (S for school bus chassis, T for tilt cab)
E = V8
5= C50 series
68= 108" cab to axle (this would be '18' if it was a Chevy)
03= cab except full air brakes

Re: Was being a GMC an option???
 

Sure.

The model code is not "nameplate" specific; ie C10703 or K30943 doesn't tell the operator what brand vehicle it is.

RPO Z88 is the "nameplate conversion" option that specifies that everybody needs to put GMC emblems on the truck.

Similarly, there is a "Chevrolet nameplate conversion" option (I wanna say X88) and, in later years, a Cadillac RPO (aka Z75).

All these trucks were run down the same line.


K

Re: Was being a GMC an option???
 

Awesome info Keith. Learn something new every day.

Re: Was being a GMC an option???
 

Thanks keith.

Re: Was being a GMC an option???
 

Ok, so if I understood that right, both Chevy and GMC were options since both brands were identified as one truck line. It was more like a selection than an option. You HAD TO select one or the other. There was no going without it like with an option. Like paint color, you get choices but paint is not an option, it's a selection

Re: Was being a GMC an option???
 

You could think of it that way, but they were called "options" (ie, RPOs) nonetheless.

In some cases if you didn't choose there was a default option. For example, if you didn't choose a color then you got the tan exterior picked for you.

Maybe powertrain is a better example. There was a base engine, a base transmission, and a base rear axle. If you didn't choose anything then you got the base powertrain combination, but each of those was still defined by an RPO.

Additionally - everything had to balance out when the Engineering Specifications group ran their "cross balance" report to make sure all the combinations were covered.

So for every option there had to be a contrasting "negative option" to balance it out, enabling Specs to run their computer generated report and ensure there was a part number created to cover all the proliferation of option combinations.

K

Re: Was being a GMC an option???
 

It's a required selection that's formally called an "option".

I guess.

(lol)

Re: Was being a GMC an option???
 

I recall seeing that one could buy a vehicle in primer. That was in '71. Not sure why someone would do that, since it would be really difficult to get everything painted after the vehicle was assembled.

Re: Was being a GMC an option???
 

Thanks for letting me pick your brain on that. I may put them as selections in my mind to make it work for me, but I like learning how it actually was for GM and why. Keep it simple and clear. Not trying to write a novel :lol:
Mom says I've always been curious

Re: Was being a GMC an option???
 

:metal:Really good info Keith, learned something new!

Re: Was being a GMC an option???
 

So you could have it painted in a color not normally available. If you owned your own company and wanted to paint it Petty blue, or whatever.

Back in the day - the mass production body work on a Corvette was so bad that you could not order a black car from the factory.

You could, then, get a primered car and have the prep work done and painted black after the fact.

K