Removing rusted in bolts on suspension

[beaulieu]

I need to remove some 10mm bolts that hold on the spring plates on my VW bug,
last time we did this was a disaster , ended up braking off 6 of the 8 bolts (4 per side)
Then I had to drill them out and tap......

Anyway this time I want to be smarter , its on another car ,
the bolts are at a 90 degree angle so I cannot just let oil sit and slowly do its job,

they are 10mm bolt size , and about 20mm or 3/4 inch of the threads are in the rear torsion bar housing ,

I can get to the back of a couple of them , but a couple are blocked in .....

I plan to use PB blaster .

any suggestions ?

thanks for your help

 

[Bruce Bowker]

If they even budge a tad just keep going back and forth and plenty of oil. If they are really "welded" in with rust, can you get heat to them without hurting the torsion bar?

Bruce

 

[beaulieu]

a couple I can get heat to, the others are buried in the frame,
Just a little chicken to even try and budge them till I have tried oiling them etc.....drilling out the broken ones on the other car took days !

 

[CraigFL]

PB Blaster and KROIL are the best...