Seatbelts with a twist.

Normally the tabs are bolted to another tab fabbed on the seat bracket, roll bar, or floor. You can answer your own question very easily. The tabs that come with the belts are straight (flat) pull. The brackets have no bends. If your mount points are outside those parameters. You will need to fab.

Also, there are two styles. The one pictured and a cam lock design. The cam lock is a bit different as in the sub belt is a permanent mount point to the floor which the cam lock is attached to and the side belts clip in to the cam. You can use the cam lock style if you like and just not use the shoulders belt slots. Where as the lever style come completely apart. I have 1 set of both styles in blue.