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My mom has decided that she wants to wheel with me and with the group. I talked her out of wheeling her 2018 Cummins 2500. She wanted a small rig. So here it is, a rust free 1985 GMC s15, 4x4, but the beauty is that is is an Iron Duke powered , 4speed standard! 



Plans are to get it to tip top shape in stock form, and then the mild modifications so she can trail run and explore.  The 4x4 did work, but I noticed some issues with the pass side axle shaft, missing the retainer snap ring, then the 4x4 wouldn't disengage, now won't engage, I believe the shift fork/collar on the 2 piece shaft is bound up, possibly with the MIA snap ring. Needs to be disassembled for further diagnosis.

 Work done so far 

Upper and lower ball joints both sides.  

Front calipers, pads , rotors, wheel bearings, new CV shafts for both sides, new front shocks, Chevy grill and headlight bezals from my old s10, 


Today was planning a bunch more work and was on the way to a shop I can work in, when it blew the headgasket..... Damn,  new engine gasket kit ordered, est arrival will be Dec 31. On the ride home today


On the way home from the purchase. It's had more kms on a tow truck than driven kms since she bought it, Hoping to remedy that lol


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10 minutes ago, autumnwalker said:

Good stuff! That's super cool that your mom wants to wheel with you / us!

That poor vette out in the cold ... it might need a new home in my garage. What were the specs again?

My mom used to dragrace a 1968 mustang fastback lol, and street challenge in anything she happened to be in haha. The Vette is hopefully going inside very shortly, 2005 C6, 400 HP 6 speed

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  • 2 weeks later...

Headgasket arrived today, in 4 days I'll tow the s15 into work and finish the rest of the maintenance and install the new gaskets. And some little mud tires

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The "DUKE" got it's new headgasket, along with the rest of the gaskets needed while pulling the head, also did rear shocks, new muffler, intermediate pipe, new tail pipe, new side mirrors, new rear brakes and wheel cylinders, fixed the inoperative wipers, fixed the inop reverse lights, installed really ugly license plate light, swapped tires with the Nissan and gave the Duke it's identity back by  installing the proper GMC grille. When removing the head, found a broken head bolt!? Was broke for a while, had bit of rust on it, and found bent pushrods. !? Didn't see anything to cause those issues, and the pushrods weren't kinked , but had slight" wow "when rolling them on a flat surface. Straightened the pushrods for now, I have a complete new set on order.  

 Truck has badgas, so bad to the point I'm amazed it ran at all, had a completely plugged fuel filter, and looks like the tank must have some rust in it. Iv ordered the parts to do a complete fuel system rebuild, including , the fuel injector, injector seals, fuel pressure regulator rebuild kit, throttle body rebuild kit , new fuel pump and fuel pump sock , and a new throttle position sensor, it has a dead spot on the gas pedal in the same spot regardless of engine rpm. 




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12 hours ago, autumnwalker said:

Wow ... this is nearly a complete overhaul! Was any of this disclosed by the previous owner? At what point do you abandon?

The guy I got it from told me as much as he knew, he was planning on full restoration to better than new condition, but had too many irons in the fire, this little truck is almost rust free, amazing condition, so I'll keep forging forward, . 

Dropped off for MVI today, it failed, the windshield was broken, the ignition switch didn't require keys but needed a screwdriver and the tailgate handle was not there. Took to glass shop, they installed new windshield, then I put in a new ignition Lock cylinder in the steering column and installed a new tailgate handle, but did not have bolts, so I robbed the bolts from my old s10, from when I was in high school lol, it's still in the bushes on my property lol now the DUKE is road legal. Next on the list is to address the front diff and restore the 4wd 

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