Park/neutral Switch

[bigo]

I have a 93 ls400 which didn't want to go into PARK every time. SOOOOO, I tried adjusting linkage and broke off nut on transmission lever which is connected to Park/Neutral switch. The tech manual says if you want to replace it to disconect exhaust pipe which is a terrible thought, so I'm wondering if anyone has done this using a short-cut. Can it be done w/o taking off rusted exhaust pipe. Also how do you disconnect wiring to the P/N switch???.

Thanks, Jerry