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Ziegelsteinfaust · 05-31-2019, 09:53 AM

C10's who do it get a 2x4 3/16 walled box tube. They they cut it to match the upper curves of the frame, and weld it to the top inside of the C-channel frame.

Being a C30 I think the frames are taller then C10's.

So what you need to do it clamp a straight edge across the bottom of you frame, and measure the difference to the pinch weld. This will tell you how much you have to remove. You can see if you can find box tube in the size you need. Or you can trace out the cut line, and cut the bottom of the frame off. The over lap it back on to the frame, and weld back on. Then get some flat 3/16th metal to box the frame to restore the frames strength. Then you will have to fab a trans cross member.

Everyone who does it removes the body, and engine to make it fast + easy. Also they usually have to raise the engine, and trans in the frame. Then cut the body to match. This is easy to do once the frame is on the ground. Just mark where the engine was so you can reposition it once the mounts are gone.

Lastly for the last detail. When you Z the front of the truck to lay frame. Also Z the back of the bed to remove the ugly step notch. Then cut the inner sides of the bed to drop the bed to match the cab. This gives you the cleanest look plus loads of accessibility to fix things under the truck, and mount a blazer tank behind the axle. You rear Z has to take this into account too.

05-31-2019, 09:53 AM	#2
Ziegelsteinfaust Registered User Join Date: Dec 2012 Location: Temple City Posts: 3,569	Re: Getting to the pinch weld? C10's who do it get a 2x4 3/16 walled box tube. They they cut it to match the upper curves of the frame, and weld it to the top inside of the C-channel frame. Being a C30 I think the frames are taller then C10's. So what you need to do it clamp a straight edge across the bottom of you frame, and measure the difference to the pinch weld. This will tell you how much you have to remove. You can see if you can find box tube in the size you need. Or you can trace out the cut line, and cut the bottom of the frame off. The over lap it back on to the frame, and weld back on. Then get some flat 3/16th metal to box the frame to restore the frames strength. Then you will have to fab a trans cross member. Everyone who does it removes the body, and engine to make it fast + easy. Also they usually have to raise the engine, and trans in the frame. Then cut the body to match. This is easy to do once the frame is on the ground. Just mark where the engine was so you can reposition it once the mounts are gone. Lastly for the last detail. When you Z the front of the truck to lay frame. Also Z the back of the bed to remove the ugly step notch. Then cut the inner sides of the bed to drop the bed to match the cab. This gives you the cleanest look plus loads of accessibility to fix things under the truck, and mount a blazer tank behind the axle. You rear Z has to take this into account too.