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So... I bought a Jimmy! *Uh oh... Opened a real can of worms this time...*

Russell

3/4 ton status
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Location
Rocky View County, AB
I've had a few K5s in the past, but I've never kept one around for long, usually involved in some convoluted trade I had on the go.

Anyways, I decided a couple months ago that I'd like to buy a K5 strictly for wheeling, as I've always had trouble navigating the tiny little Jeep trails I always seem to be running on (perhaps wheeling with a Jeep club has something to do with it?) I spent months shopping for a decent rig with a couple of requirements -- Had to be either diesel or fuel injected, and had to have a solid tub that wasn't about to split in half when the truck gets flexed offroad.

I looked at almost every K5 on the market both here and down in Calgary, and finally settled on this 88 GMC Jimmy I found up here in Edmonton. While the truck looks extremely rusty, it is actually a bit misleading. The tub itself is actually very solid everywhere but in the tailpan. All the body mounts (minus the rear two) are sound, floor pans and rear box floor are all solid.

The reason why I settled on a bit of a rustier truck is the fact that the Jimmy has a freshly overhauled TBI 355 with an edelbrock cam + intake and a recently overhauled 700r4 as well (less than 10 000 miles on the pair), brand new dual exhaust, a 4" lift with dual shocks up front, and brand new differentials with 4.56 gears straight from GM (I have receipts for both complete diffs and receipts from a trusted local repair shop that supplied and installed the gears). The fact that it came with a decent sound system and 5 brand new 33x12.5x15" MTs was a sweet bonus.

I took the truck out for a wheeling run this last weekend to try things out, and had a great deal of fun! These little trucks just zip around corners that I always used to have to do multiple point turns on before. The flex isn't bad either, despite ripping a rear body mount off the tub when I really flexed it out :doah:

Anyways, my plan with the truck is to replace the tailpan and two rear most body mounts first, then install a new tailgate and hinges so I can actually open it. Next up will be to install my locked 3/4 tons with 4.56 gears along with a set of 56" rear springs on a shackle flip, 52" springs up front with crossover steering and ford shock towers. Since there is no good choice of 8 lug 15" wheels up here, I will be running a set of 34x10.5x17" Interco LTBs on Hummer H2 wheels.

Eventually I plan to swap in a 6.2L diesel engine with an NV3500 / NP241 combo, but that'll be happening way down the road!

Since you guys love pics, here are a few from this last weekend's wheeling trip:

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Well, I went and done it! I decided that I'd get the endgate fixed up this weekend. Yesterday I started pulling things apart, and next thing I knew the truck was stripped up to the back seat, and boy was I dissapointed with the amount of rot I discovered.

Essentially the entire truck is sagged 3 - 4" in the back, and the only thing keeping the box-sides from flapping in the wind is the topper (good thing I never pulled it off!). So, out came the sawzall, chisels, air hammer, BFH and spot weld cutter, and I started pulling everything apart to perform some major surgury.

At this point it appears I am going to be replacing the entire tailpan crossmember, the last 38" of the box floor, both tailgate towers, both tail light housings, some sheet metal under the fuel fill door, the rotted portions of the box-sides around the wheel wells, the inner and outer rockers, both front fenders and the hood. Fortunately, everything front of the rear seat latches is solid enough to be left alone with the exception of the rocker panels and front fenders.

So, to get started I made a phone call to an old high-school friend that I'd given an 80 2wd K5 to a couple years ago, loaded with patch panels for both box-sides and the unboltable portion of the fender wells and both the inner and outer rocker panels. I've already secured a new front clip, and will use the hood from the 2wd K5 to make patches below the fuel door and a few other places. Before I can get started on the box-sides or rocker panels, I need to stop by the wrecking yard and rob some poor pickup of it's tail light assemblies with the tailgate towers and pick up a new tail pan crossmember. Then we'll see if we can get this poor K5 back together!

I'll post some pics tomorrow, totally forgot to take my camera out to Ardrossan with me for the before pictures...
 
I'm completely unsurprised Russ...sorry. The general rule of thumb with rust on a K5 is this "by the time you see the first bubbled paint or tiny exterior rust spot...the truck is pretty much a basket case"

K5's rot from the inside out, still sorry to hear it though.

Rene
 
Yeah, and I knew as much when I bought one. Unfortunately, there is no such thing as a rust free K5 around here anymore (well, for less than $10 000 anyways). That said, I am not scared of rust repair (I've done a couple trucks before), so it will get done sooner than later. The bulk of the repairs are based around replacing the tailgate crossmember. The rust in the wheel wells is only being done cause I happened to get the patches I needed at a very affordable price (aka free)
 
Woo! Much thanks to Diaric here on CK5, I've got a set of complete box sides to replace the rotted out units on my K5. Will have saved me a TON of time and effort welding pickup parts into a K5 (the tailgate towers, tail light assemblies, patch panels etc)
 
Cool. My truck has a little rust, but in different spots. Yours is eaten up on the sides, mine has the hole above the door in the roof but relatively dry floors and the sides and fenders front and rear are great, and its from Long Island! Looks like you have some work cut out for you. :D
 
Well, when I finished pulling the sheet metal, I found some nasty frame rot along the top of the rail. I just can't justify replacing all the sheet metal and the frame on an off-road only rig, so I am going to part it out.

I know some of you are probably rolling your eyes, but just remember I am 22, and still make lots of dumb mistakes. Buying this truck was one of them.
 
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