1972 C10 or C20 help

[SoCal Wreckage]

Hello everyone,

First I would like to thank you guys in advance for answers.
I been following this site for a while and have enjoyed all the stories, info and pictures you guys provide. I finally created my account mainly because now I am in search of my own truck. I know what I want but need help.

I been searching my local Auto trader, Craigslist (San Diego, CA), and other sites to help me find the right truck for me.

Today I drove to see what I thought is a 1972 Long bed C10. Well that's what the advertisement said. I took a printed copy of the Vin Decoder found here on this site and well all the numbers point to be a C20.

How accurate is this decoder?

The current owner "was told it's a C10" which he got from his father in law. The truck was brought from Washington to California about 2 years ago and the Pink Slip does not state model size.

I took a couple of pictures and wrote down every number.

Vin# CCE242Z175431
C=?
C=4x2
E=V-8 Gas
2=3/4 ton??????
4=pick up
2=1972
E=?
Z=Fremont


Model # CE20934
C=4X2
E=V-8
2=3/4 Ton??????
09=54"-59"
34=Fleetside Pickup

GVW Manufactured: 6200 Lbs
GVW Maximum : 7500 Lbs
Other info:
350 V-8 WITH TURBO AUTO TRANS
BX2-B SIDE MLDG-WIDE LWR
F51-FRONT AND REAR SHOCK ABS
G50-HEAVY REAR SPRINGS
YG7-SPEC PROMOTION PKG-B
Z62-CUSTOM DELUXE EQUIP

So is this a 3/4 ton like the Decoder is telling me????

Other than the Bed and frame size (and WEIGHT) what else would need to be done to convert to a C10? Possible?

Thanks,