fusion Posted December 9, 2019 Share Posted December 9, 2019 Car is a 1976 280z. Just got it a while ago and starting my build. I am beginning to plan my roll bar. I noticed there are 2 bowl shaped recesses in the floorboards, behind each seat. I am assuming they are there for clearance when the seat is slid all the way back? Either way, this is in the area where I am going to build the boxes for the main hoop connection, so I am planning on cutting them out and welding in a flat plate. Just wanted to know what they are there for. Thanks Joe Quote Link to comment Share on other sites More sharing options...
pamato Posted December 9, 2019 Share Posted December 9, 2019 Seatbelt pocket. Quote Link to comment Share on other sites More sharing options...
ZHoob2004 Posted December 9, 2019 Share Posted December 9, 2019 Those are where the lower retractors for the seatbelts go. Look around at the project threads and there are lots of ideas for how to weld a cage to those. A roll bar should be the same situation. Quote Link to comment Share on other sites More sharing options...
luigi Posted December 10, 2019 Share Posted December 10, 2019 Once you get the paint and sealant off that area You might decide to leave it and plate over for main hoop. I think it's doubled there. I thought about putting a hole there and extending the hoop out the floor. Then cap it. Good jack/ jackstand point. I dreamed of air jacks somewhere near there. Quote Link to comment Share on other sites More sharing options...
fusion Posted December 11, 2019 Author Share Posted December 11, 2019 Thanks guys Quote Link to comment Share on other sites More sharing options...
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