I have a 1930 Model A frame fully assembled, running car.... I want to replace the nuts/bolts on the side of the frame that holds in the front cross member (side=facing the wheel) and was wondering if I can simply remove these bolts to replace, or am I dealing with sprung issues? Meaning.... as I loosen, is the cross member and the frame rail going to separate . The reason I need to remove all side bolts (x2) is that I need to grind off some super ugly welded shock mounting brackets. So, the simple question is.... if I remove all side nuts/bolts from the core support/frame rail, what should I expect to happen?
Originally, they were riveted in. Whenever I've removed them there wasn't so much as the frame "springing". If the frame is square, in my experience, you'll have to hammer it back some to get it out.
If you're concerned about the frame moving, lay a couple pieces of angle iron across the top and bottom of the frame and secure with C clamps so the frame doesn't move.
How about a couple of pieces of threaded stock using existing bolt holes and nuts on both sides where it goes through the frame? Difficult to say without seeing the car in person. Charlie Stephens
There are still rivets (maybe bolts in your case) on the top edge and bottom edge of the crossmember. I wouldn't worry about it. Maybe you can remove and grind them one at a time. But even if you had to take all (is it two or three?) of the side bolts out at the same time I don't think the frame would spring crooked.
If your still in the construction stage tack weld a piece of steel just forward of it.You can grind the welds off later.
Open 'C' channels in steel flex easily. You'll be okay. T'ain't much beside the X-member up front keeping everthing square.