To Order the I/O Port Seat Back Brace SBB-15 Click Here.
 Determine where on the seat back the mount needs to be to have the 1½” tubing within ±20° from horizontal* either above or below the shoulder harness bar on your roll bar. *Note: For quick adjustment, make sure the 1½” tubing is parallel to your seat rails. The bracket needs to be mounted centered from side to side within the area indicated in diagram A. Mark this position on the seat. Remove the plastic coating on the clamp and box channel pieces. Place a clamp piece back-to-back with the box channel piece. Push the 4 carriage bolts through the 4 innermost holes in the box channel and through the first clamp piece. (For 1¾”-2” tubing use the outermost holes.) Place this assembly under or over the harness bar of the roll bar and attach by using the second clamp piece and 4 Nylock nuts. Leave these nuts loose at this time.
NOTE: It is imperative that the mounting plate be firmly attached to the back of the seat. The brace will not function properly unless properly mounted. If needed, mark and bend the seat brace mounting plate to fit the contour of the seat back. If bending is required, place the 3/8” bolt through the two tabs and thread the nut to where assembly will hold the tabs from spreading when bending. Then mark and drill two 3/8” holes in the mount and seat back. Use the button-head bolts (with the washers at the bolt head) to mount the brace to the seat. Secure with Nylock nuts to 20 foot-pounds. Place the 1½” tubing through the box channel and secure to the seat back using the long 3/8” bolt and matching Nylock nut. Adjust the seat fore/aft to make sure everything is in proper alignment. When the seat is in place, tighten the four small nuts to 25 inch-pounds. Adjust the seat to each desired position; drill a 3/8” hole through the 1½” tubing using the holes in the box channel for alignment. Use the quick pin through this hole to finish the installation.  | 
