Torsion Rod Adjuster Stuck

Hi Guys.
Need some advice from you guys who's been around these cars longer than I have.
Currently tearing down my 67' Dart convertible. Its pretty much torn down now and next step is to get k-member and all front suspension off.
When going to back off adjuster for torsion adjuster the bolt snapped. I did put some penetrating oil and on it before hand but that wasn't sufficient.
As far as I understand I must get the tension of the torsion bars before it is even worth a try to get these out.
Any one has a suggestion of approach to use if adjuster stuck.
I was kind of thinking of releasing the lower ball joint and shock mount, support the lower control arm on floor jack and slowly lower until tension would come off torsion bar? Will lower control arm swing low enough to relieve all tension?

Any other ways to adress?
Have been trying to find related threads on here and sure there should be anywhere but probably used wrong search words.
Any input greatly appreciated.
Thanks