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#1 |
Registered User
Join Date: Jul 2007
Location: Utah
Posts: 295
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removing cross sills
im almost ready to start removing the cross sills under my steel bed. What is the best way to remove the spot welds? can i grind out the welds with a cut-off disk?
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#2 |
Sophomore Member
![]() Join Date: Jul 2006
Location: brownwood, tx
Posts: 927
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Re: removing cross sills
you can, but it will leave a large area to repair and make it thin all around it. the best thing to do is get a big a little larger than the weld and drill it, trying not to drill through. they make a spot weld bit, but i've had just as good luck with a normal bit.
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1972 Chevrolet Highlander SWB 1972 Custom Deluxe 3/4 2WD 60k miles these trucks don't need vacuum gauges cause they don't suck! two wrongs don't make a right, but three rights do make a left all i want is a little more than i'll ever get it's better to be judged by 12 than to be carried by 6 |
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#3 |
Registered User
Join Date: Jul 2007
Location: Utah
Posts: 295
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Re: removing cross sills
so i would drill downward into the bottom of the bed? the holes would get filled when i reweld the new sill,Thanks. did you use the bed patch panels they sell or did you cut your own patches out of a junk bed?
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#4 |
Sisyphus was my mentor!
![]() Join Date: Sep 2002
Location: Carleton Place, Ontario CANADA
Posts: 984
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Re: removing cross sills
Below is my steel bed project. I did my removal from the underside. It couldnt get to the spotwelds because the cross sills were too tall. I took my cutoff wheel on my angle grinder & cut them off, & I tried to use one of those spot weld cutters, but they failed instantly... I then tried an 11/64 (or something close to it) drill bit on the spot weld (after I center punched it) without going too deep & it just poped off. I just couldnt find a good donor bed so I had to do it by melding 2 bed floors. I ground the welds smooth & I'll get it line-x'd eventually. Dont use the patch panels they sell-they dont line up! Be prepared to weld a million holes! Good luck!
http://67-72chevytrucks.com/vboard/s...d.php?t=138385
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passthebuck ![]() #5642 -TWO 1967 GMC 910's. One with L6/3-on-the tree and the other with 355 w/435hp & a 700r4. -a 2013 Honda Civic as my "sensible" car Last edited by passthebuck; 09-02-2007 at 08:23 PM. |
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#5 |
Registered User
Join Date: Jul 2007
Location: Utah
Posts: 295
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Re: removing cross sills
THANKS! passthebuck this is my first project. I hope it turns out good as yours
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#6 |
Sisyphus was my mentor!
![]() Join Date: Sep 2002
Location: Carleton Place, Ontario CANADA
Posts: 984
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Re: removing cross sills
I forgot to add that a wirewheel on an anglegrinder will be your best friend to help find spotwelds & to prep the steel for welding without taking off too much metal (like using a grinding disk would)
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passthebuck ![]() #5642 -TWO 1967 GMC 910's. One with L6/3-on-the tree and the other with 355 w/435hp & a 700r4. -a 2013 Honda Civic as my "sensible" car |
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#7 |
Registered User
Join Date: Jul 2007
Location: Utah
Posts: 295
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Re: removing cross sills
thanks for the tips,i just got a welder today.its still gonna be another week or so before i try my luck at this
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#8 |
Sisyphus was my mentor!
![]() Join Date: Sep 2002
Location: Carleton Place, Ontario CANADA
Posts: 984
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Re: removing cross sills
keep me posted!
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passthebuck ![]() #5642 -TWO 1967 GMC 910's. One with L6/3-on-the tree and the other with 355 w/435hp & a 700r4. -a 2013 Honda Civic as my "sensible" car |
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