The Stovebolt Site Forums The Shop Area Paint and Body Shop Frame Wear Continued....

Ok, posted a few days ago about some metal hammer peening on the top driver frame rail from a loose cab bracket. Got some great ideas to fix it. Thanks to those who contributed. This is kind of a continuation of the same issue. Once i cleared the scale and rust from the area i exposed some bolt holes that have been pulled into the frame. The two lower bolts holes are from the clutch and brake pedal assembly and the big dent at the top is from the shaft for the pedals. I have know idea how the frame could see that much force from those pedals even if the bracket was loose (it wasnt when i removed it).
At any rate Inwas wondering if anybody else had seen this on their one tons or other?
I am thinking about drawing the dents out by placing a large grade 8 bolt and washers behind the frame, through the frame and a piece of half inch plate on the outside surface and use a big impact to draw the dent out and do i preheat the area or not? Thoughts and comments appreciated.

http://i1380.photobucket.com/albums/ah168/TcolemanC/Mobile%20Uploads/20150809_211102_zpsowl79glh.jpg

As I said on the trapezoid shape, the indent is factory. I can not see any other answer. I'm sticking with that. Is there a corresponding bulge on opposite side of circular indent?

Yes there are three buldges on the inside of the frame rail.

There's such a thing as being TOO picky. I'd use some fine thread Grade 8 bolts and nuts, fabricate some 1/2" thick backing plates to fit inside the frame, and get out the long-handled wrenches. On a frame that size, being concerned about a little wear is sort of silly. I'm going to assume the truck isn't going to see max gross weight loads often, if at all, right?
Jerry

Bulges indicate "forming" at factory. If I am understanding that there are bulges opposite the "wear indent", that would prove it's a factory operation to indent by forming. Either to create a recess for a part or to create a stick out on the inside as clearance for a part or so something can rotate without rubbing frame.

perfect. learning something new every time i post a question. Thanks

A lot of these frame rails are significantly tapered front to back.
When a part needs to be mounted perpendicular to the center line of the truck, the kind of bulging you are seeing is done on purpose to provide for proper alignment of these perpendicular parts.
Carl

Carl,
That's exactly what it is. The frame tapers still well back of this point where the clutch and brake pedal assembly mount. Was just not 100% sure as its right in the same area where I have that cab mount indent so was thinking more damage than anything else. Thanks