Join Date: May 2002
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Re: Is it OK to drill the frame???
glad to hear you arn't seriously damaged. Do your self a favor, go spend $20 (harbor freight) to $60 (sears?) on a 4 inch mini grinder. They are 10 times easier to control and do a better, faster job.
On the frame thickness, I got a news flash, thats not a particularly thin frame. Full size trucks use .120 wall channel comonly. Sure its deeper than the 4", but the zuk frames are pretty stout excepting the cross tubes.
As Jim said, plate the sites of heavy loads and sleeve it so it wont colapse. The only welding I avoid on frames are welds that go full depth vertically. If it is a stressed section its an almost forgone conclusion that it will fail adjacent to the weld (I can hear the welders axiom now, "my welds never break" yeah, but the weakend material next to it did, didn't it?)
I have had to plate too many frames with this failure, to not warn of it. Welds going lengthwise dont have that problem generally, as the weld is flexing like a bow instead of being in tension.