Jan, if you have Mike Satur roll hoops the T-Bar is not a straight swap
You need to Dremel the underside to allow the seatbelts to move freely and (very carefully) put 4 holes in the top for the roll hoops.
Also, you will need speaker brackets to fit the cross-member, as the OEM speaker mounting does not fit with the cross-member.
You also need to run rear speaker leads through the console between the seat, which means you need to remove the section that is between the seats, below the T-Bar.
It's not a difficult job but does take a bit of time.