W126 1991 560SEL ignition lock from hell (shift lock wont release).

[alabbasi]

Long story short, my lock barrel jammed and when I tried to unjam it. I broke the key. After about 8 hours with an air hammer (not knowing what I was doing) and killing my dremel. I was able to get the old ignition lock off. Today, I replaced the lock, barrel and steel cover with new parts and everything went back together quite smoothly. However, the shift lock would not release. I can remove the cable from the lock assembly and press down on the pin which would release it but the ignition lock itself will not

Any ideas why?

Failing that, I'm thinking of screwing in a cap over the lock (assuming I can find a cap of the right thread size) so it that the pin is permanently depressed.

Is this a feasible workaround?

Thanks