It's some fabric I picked up @Joann's Fabric - my headliner was doing the sag so I took it off, cleaned the board and put this on with spray adhesive. Same thing on the roll cage foam.It's been in over 10 years w/ no problems.
Please have one made and read up on driveshaft critical rpm !! Precision Shaft Technologies has a nice chart.
Critical Speed is the RPM at which the driveshaft is computer projected to bend or whip. Exceeding Critical Speed can produce vibrations that can result in driveshaft failure.
The...