Early FJ40 seat belt anchors?

[VA Mountain FJ40]

On a 1968 FJ40, what do the driver and passenger seatbelt bolts anchor into? Threaded inserts in the tub floor? Big captured nuts?

When I reach under the tub beneath the seatbelt bolts, whatever they are anchored into is inside a tubular cross member. Can’t find a drawing. Only have a bolt head inside the passenger tub.

Worried if I start to remove seatbelt bolts and end up confronted with a spinning bolt with inaccessible bottom fasteners.

Any illuminating thoughts?

Thanks,
Chip
VAMtn FJ40

 

[Mark Jennings]

I have 68 and I think those are welded and not, simple capture nuts. Spray them down good with penetrating oil and you should be OK.

 

[diesellibrarian]

If the 68 is like my 72, there’s a nut that’s welded to a heavier-gauge reinforcing plate that is spot welded to the underside of the floor panel. When I repaired that section of my tub, I more or less reproduced the stock setup:

 

[VA Mountain FJ40]

Thanks folks for the quick answers. Kroil soak and go from there. Welded nuts is good.

 

[VA Mountain FJ40]

Removed the seat belt bolts today after Kroiling last night. No issues. Thanks again for the kind guidance…

Chip