1998 K1500 Silverado 4X4 regular cab long box Frame Dimensions??

[NSDON]

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[Supercharged111]

Finally got the wheel alignment done, it was out on toe on but my fitting of the frame back together turned out great.

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Looks like it's time for a new alignment guy, but good job on the frame repair. Was it diamonded?

 

[NSDON]

No. I lined it up myself and I found a real good welder. I got some really complete stock measurements and using those determined everything was square on the rear frame section. I used measurements for the rear cab mounts, the transmission mounts, and the rear frame tips to prove no diamond. Before cutting the frame in front of the frame joint welds I drilled an upper and lower 3/8 hole in the joint overlap and installed a grade 8 bolt and nut through the holes. There is a factory measuring hole on the rear frame section, just behind the weld joint, I did some very precise measurements from the measuring hole to the bolts and then from an upper and lower spot I marked on the old frame front cab mounts.
The bolt hole i drilled in the middle of the frame sections overlap was only a few inches from the measuring hole on the rear side and the cab mounts on the front side and this section I was working in had no damage.
After cutting the front damaged section off and removing the short piece of it remaining inside the rear frame I moved my new front frame section in place inside the rear section. I had set up my rear frame section with a level plus measured it from the floor to get height of frame bottoms equal on both sides, then slid the front section inside the rear section.
The front section I kept level and the same distance off the floor to keep it level, then lined up the 2 frame sections at the welds with those measurements I had from the 4 3/8 bolts holes drilled. Once I had it lined up the best I could, I used my 3/8 bolt holes in the rear frame section to drill through the front frame section. Bolted it all together, remeasured everything a bunch of times, cleaned it all up and got it welded.

I’m retired so lots of time available to do measurements a hundred times or so. After the weld, I figured I was within 1-2 mm of spec.

 

[NSDON]

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[NSDON]

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[Supercharged111]

Once the welds were cut, how much of a pain was it to finagle the old one out and the new one in?

 

[NSDON]

Once you ground off some of the welds, you could see where the original edge of the steel was and I cut the weld along that line with a cutting wheel (smoothed off the remaining welds with the grinder after). Surprised how little factory weld was there and it wasn’t that big a job. And I’m very inexperienced.

Once I cut the front off, the weight of the rear bumper and some wood held the frame up high so easy to remove what little weld was on the bottom.

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[Supercharged111]

You should come out and do this to my plow truck. Front right wheel is pushed back a couple inches, frame gave way at the back of the control arm. If mine isn't diamonded this would be a feasible repair, albeit a significant one.

 

[NSDON]

Mine hit almost dead center.

Just mail it to me.

 

[Supercharged111]

Mine hit almost dead center.

Just mail it to me.

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