Welding advice

["Ronald A. Dowty" <rdowty@dowtyenterprises.com>]

I've got to replace the forward differential support on my frame which
is off the car. The old bracket appears to have been welded to the stud,
then the stud was welded to the cross member. Since I don't want to cut
the stud out and it's a tight fit for my mig what should I do or have
done to get a good weld on the bracket to stud joint?