If I understand your question , the bar is bolted to the side of the tunnel just behind the end of the console.I've never unbolted the seat completely so I'm not sure what it bolts to on the front.Good luck.
1985 380SE- 160,000km 'Blistu' - Sold
1988 300CE- Eva,my garage mistress
2007 R350 4matic- The Black Pearl
2011 Ford Ranger-Work truck
1974 25' Trojan Sea Raider- 'Grannyknot'
2002 215 cm Atomic DH skis- Canadian SDH record holder, 175.5km/h- Vars 2010