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Old 06-04-2023, 06:40 PM   #1
72 k15
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1968 GMC k2500 Stepper

Going to start a build thread for my 1968 K2500 I got got shipped in from Idaho, seems to maybe be a state forest department order truck or similar, was ordered to Alturas CA originally. Born with a 327 and now has a very good running 292.
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Old 06-04-2023, 07:55 PM   #2
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Re: 1968 GMC k2500 Stepper

Subscribed!
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Old 06-04-2023, 07:56 PM   #3
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Re: 1968 GMC k2500 Stepper

Cool.
1968.
Orange truck.
Stepside.
292.
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Old 06-04-2023, 07:59 PM   #4
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Re: 1968 GMC k2500 Stepper

Do I see “TOW HOOKS” on that build sheet?
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Old 06-04-2023, 08:07 PM   #5
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Re: 1968 GMC k2500 Stepper

Great truck. Subscribed
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Old 06-04-2023, 09:23 PM   #6
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Re: 1968 GMC k2500 Stepper

Quote:
Originally Posted by 72 k15 View Post
Going to start a build thread for my 1968 K2500 I got got shipped in from Idaho, seems to maybe be a state forest department order truck or similar, was ordered to Altus CA originally. Born with a 327 and now has a very good running 292.
When you start the actual build thread be sure and post it in the "67-72 Chevrolet & GMC Pickups Projects and Builds " forum.

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Old 06-04-2023, 09:50 PM   #7
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Re: 1968 GMC k2500 Stepper

Does have tow hooks on the sheet, they are now missing. I totally didn't notice there was a project forum maybe a admin could move it? Took it for a 40-50 mile shake down, 4wd works, drives great actually I was surprised. First thing on my fix list is the temp gauge and fuel gauge. Changing all fluids next weekend hopefully but I did check the T-case and it was full.
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Old 06-04-2023, 11:27 PM   #8
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Re: 1968 GMC k2500 Stepper

Quote:
Originally Posted by 72 k15 View Post
Does have tow hooks on the sheet, they are now missing. I totally didn't notice there was a project forum maybe a admin could move it? Took it for a 40-50 mile shake down, 4wd works, drives great actually I was surprised. First thing on my fix list is the temp gauge and fuel gauge. Changing all fluids next weekend hopefully but I did check the T-case and it was full.

Moved.

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Old 06-05-2023, 12:27 AM   #9
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Re: 1968 GMC k2500 Stepper

Glad to see the truck made it to North Dakota safely. Will be following along for the next phase of this trucks life.
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Old 06-05-2023, 06:32 AM   #10
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Re: 1968 GMC k2500 Stepper

In for this beauty!
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Old 06-05-2023, 08:33 AM   #11
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Re: 1968 GMC k2500 Stepper

Sweet! It looks to have the high clearance wheels. Are they 17.5's o r the 19.5's?
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Old 06-05-2023, 07:24 PM   #12
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Re: 1968 GMC k2500 Stepper

It has factory 17” split rims not sure what the correct name would be because it’s a one piece outer rim and then the other part the tire mounts on. Going to probably have to find some tires these ones hold air and have good tread but they ride like they are not balanced. So I’ll have to find some new rims I doubt anybody will mount anything on these and I’d like to get some 33x10” tires if I could find some don’t want to go too wide without power steering
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Old 06-05-2023, 07:28 PM   #13
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Re: 1968 GMC k2500 Stepper

Here some information on them.

https://67-72chevytrucks.com/vboard/...d.php?t=828805
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1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo
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The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377
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Old 06-05-2023, 08:03 PM   #14
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Re: 1968 GMC k2500 Stepper

They definitely seem to be 17”
I have heard any model 8bolts will fit so I’ll try to find a 17x7 anybody know what the factory offset is on these?
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Old 06-05-2023, 09:57 PM   #15
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Re: 1968 GMC k2500 Stepper

I wonder if someone like Stockton Wheel would weld those centers into a one-piece rim? Or a machine shop maybe. Then you can match the exact offset you need.
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Old 06-06-2023, 08:58 AM   #16
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Re: 1968 GMC k2500 Stepper

Your build sheet shows option R74. According to the 68 manual R74 is a 700-17, 8 ply bias, on/off road, tube type tire on 6 inch wheel. I would guess that the back spacing is right around 3 inches.

You need to take those wheels to a commercial truck tire shop to get them serviced. 99% of other tire shops will tell you that they cannot be used. Mostly due to their lack of proper equipment and their desire to sell you new rims. Replacement 17 rims won't be hard to find if you don't mind going to a 7 or 8 inch wide rim. Earlier model split rims gained a bad reputation but the technology advanced and they are still being used today on large trucks. A competent commercial truck tire shop will be able to inspect and determine if your wheels are safe to install new tires on. Corrosion can damage the rims.

My high clearance rims are 17.5's so tire selection is more limited but they aren't split rims either.

Those rims are hard to find if your looking for them.

Link to the GM heritage center 68 truck information kit.

https://www.gm.com/content/dam/compa...olet-Truck.pdf
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1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo
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Old 06-06-2023, 10:00 AM   #17
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Re: 1968 GMC k2500 Stepper

Thanks for the info, I actually wouldn’t mind keeping the rims if I could get the tires I wanted on them but I’ll have to stick to tubed tires which limits it a ton and is costly. Most likely I’ll end up with some 17x7s going to have to find a skinny tire as well as I don’t have power steering.
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Old 06-06-2023, 05:20 PM   #18
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Re: 1968 GMC k2500 Stepper

Quote:
Originally Posted by HO455 View Post
My high clearance rims are 17.5's so tire selection is more limited but they aren't split rims either.

Those rims are hard to find.

https://www.gm.com/content/dam/compa...olet-Truck.pdf
My '68 C/10 Stepside was some kind of fleet truck, and came with 6-lug 17.5 x 5.25'' rims. Listed on SPID. Originally had 7.00x17.5 tires. I had to go up to 8.00x17.5 in the late '70s, as the 7.00s went obsolete. Then I moved to 8R-17.5LTs in the '80s. By the year 2000, I was told my 17.5 rims were shot, so I bought 16'' spoked rims and had 235/85/R16LT tires mounted to get about the same stance. Offset is ~3-5/8''.
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Old 06-06-2023, 05:30 PM   #19
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Re: 1968 GMC k2500 Stepper

That thing is too cool! Keep us updated
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Old 06-06-2023, 10:48 PM   #20
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Re: 1968 GMC k2500 Stepper

Got some wiring coming tomorrow to fix a couple things, Friday bumper bolts should be here along with a gas tank cab seal and gas pedal (Fancy I know) Still on the lookout for a rear bumper for a Stepside.
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Old 06-07-2023, 07:25 AM   #21
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Re: 1968 GMC k2500 Stepper

WOW that is an amazing truck! I saw it for sale on the board a while ago and wished I could make room for it in my own garage. Glad to see it is still in good hands.
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Old 06-07-2023, 07:49 AM   #22
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Re: 1968 GMC k2500 Stepper

I have the same rims on my 68 you will have to use tubes and liners . The local truck shop here will do them for me car shops will not touch them . I put some rims from a ford f250 on mine for now until I get around to blasting and painting the originals . They are very hard to find been looking for a spare myself .
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Old 06-07-2023, 07:02 PM   #23
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Re: 1968 GMC k2500 Stepper

I plan on just getting some 17x7 8 bolt rims I don’t want to pay 300+ for a tire and then looks like 50$ a tube for tires that most likely won’t be great on highways
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Old 06-07-2023, 08:54 PM   #24
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Re: 1968 GMC k2500 Stepper

Yeah. Gas was 17 cents a gallon for regular leaded, when those were common.
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Old 06-07-2023, 09:26 PM   #25
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Re: 1968 GMC k2500 Stepper

So good news, got all the lights working put a new rear harness in, bulbs, and some fuses and all works. Put a fuse in for the dash and now my gas and temp "work" Gas reads way to the right and temp doesn't go above cold.
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