GMC 3500 longhorn stepside
 

Im looking for some more information on my latest project. Is there any good sources of information on what the original purpose could be for? Or any production numbers available on how many longhorn stepside’s with a 9’ box were built? Thanks


1970 GMC3500
350v8 4speed granny gear
2wheel drive single tire rear axle
Manual steering

Re: GMC 3500 longhorn stepside
 

That my friend is a thing of beauty! I also am interested in production numbers of this truck.

Re: GMC 3500 longhorn stepside
 

Wow, that's an amazing find. It looks to be in pretty good shape! I'd love to see more pictures of it and the interior as well.

I don't have access to production numbers, but I remember reading some story about a fire destroying most of the GMC records. The experts will probably chime in soon.

Welcome to the board!

Re: GMC 3500 longhorn stepside
 

THose hub caps look older???

Is glove box decal still intact???

Way cool, thanks for sharing!!!

Re: GMC 3500 longhorn stepside
 

The rims are 3 piece split rims, I’m not sure what they came off of. But the hub caps have Chevy emblems

Re: GMC 3500 longhorn stepside
 

The truck is in good shape overall but it will need a lot of loving

Re: GMC 3500 longhorn stepside
 

Welcome to the board! Love 9 foot stepsides!. It's true, you won't get any production numbers, just guess-abouts. Hubcaps look 65-66.
These were the true workhorse no nonsense truck. Probably has 4:56 gears..or worse 5:17's!. I owned a 69 GMC K2500 V6 8' stepside, same interior color as yours too.

Re: GMC 3500 longhorn stepside
 

wow!

Re: GMC 3500 longhorn stepside
 

Nice Truck
And quite rare

I believe that is a c30 9’ Stepside
Not to be confused with a Longhorn
Which would be an 8-1/2’ fleetside bed

Nonetheless, it is really cool

I don’t think this book has the GMC production #s
But you can see very few Chevys in that configuration
We’re built
I’m sure GMC #s were even fewer

In the spid picture, I can’t make out Wheelbase length
Are you able to see what it is ?

I know Longhorns were 133
And c30 dually trucks were either 133 or 157

Never even thought about what c30 long steps would be
I’m sure somebody can chime in on that

Re: GMC 3500 longhorn stepside
 

Wheelbase on the 9' step would be the same as the longhorn at 133"

Re: GMC 3500 longhorn stepside
 

Thanks for the information guys! Any idea what rims would have came on the truck originally? Also what kind of bumper it would have had on the rear?

Re: GMC 3500 longhorn stepside
 

Very cool truck.
I’ve only seen one c30 stepside with a 9’ bed.

Re: GMC 3500 longhorn stepside
 

...

Re: GMC 3500 longhorn stepside
 

And I’m guessing it had split rims on it
But if it had caps
I’m thinking they were white
Because it was not a high trim truck

Re: GMC 3500 longhorn stepside
 

Its a gmc so it's a fender side. Haha beat you to it. You know how your are haha

Re: GMC 3500 longhorn stepside
 

If you want correct ones
Here they are
They are on ebay right now
And
That is only for 2

Re: GMC 3500 longhorn stepside
 

I think a 30 would have had 17 three piece rims . My 20 has heavy duty front and rear springs with 17"

Re: GMC 3500 longhorn stepside
 

I currently have 7.50x17 3 piece Chevy rims. 7 of them with 4 Chevy center caps. Does anybody need them? I don’t want to use them if they are for an older model. Plus the tires are pretty expensive

Re: GMC 3500 longhorn stepside
 

That is a tough looking bumper anyway idea where I could find one of those?

Re: GMC 3500 longhorn stepside
 

Thank you! I wasn’t sure if it was a Longhorn or not. But it does have 133” wheelbase

Re: GMC 3500 longhorn stepside
 

Im interested. I really just need one for the side mount but I'm sure I'll be buying another soon . Found a nice one not but 5 miles from me. Guy is a tree surgeon and arborist and saw my 72 in town . 67 long stepper his dad bought new . Still has the tree company logo on the doors

Re: GMC 3500 longhorn stepside
 

Rear Bumpers were not required on these trucks so you could have factory ones like my 68 or a plethora of after market ones.

Re: GMC 3500 longhorn stepside
 

Judging by the hubcaps, the wheels are off a '64-'66 C 20 or C30, however, the 17" 3 piece wheels were used up to '68. '69 and newer 20's or 30's generally came with 16' 2 piece wheels or 16.5" wheels with bumps for hubcap retention. Most run the newer and plentiful 16" 1 piece that came out in the mid 70's and used up to '91. The white 12" GMC hubcaps posted are the correct style for your '70

Re: GMC 3500 longhorn stepside
 

Nice truck! I have a 72 GMC 3500 1 Ton Fleetside with 8 1/2 foot bed.
What are your plans with your long stepper?

Re: GMC 3500 longhorn stepside
 

Forrest Service truck. Looks like a nice truck.
Ro