Only thing I know about frame repair is not to do the entire weld all at once. Do an inch or two, let it cool, do an inch or two, let it cool, and so on. If you do large welds all at once it weakens the metal around the weld.

Least wise, that's what the Pirate guys always beat on everyone about. smile I've been religious about following that technique on my big Sport and I've never had a problem with the dozen or so repairs I've had to do on the body mounts and stuff.

Edward

'97 Montero Sport LS 5-Speed 3.5L conversion
SAS Dana 44s & ARBs, 35" Yoko Geolandar M/Ts
NP231 B4R doubler/Terra Low231/RP 5.38 229:1
'99 Montero Sport Limited 4WD SAS 3-link project
'03 Montero Sport Limited AWD
'97 Montero Sport LS 5-Speed 4WD