The Perrin Rear shifter bushing helps eliminate any loose and sloppy feel during gear changes! Give your shifter a feeling of precision not found with stock bushings! Installing the stiffer PERRIN Rear Shifter bushing makes the shifter feel even more connected to your transmission. The Perrin Rear Shifter bushing is constructed from stiff 88a durometer polyurethane. This material is flexible enough to allow for normal drivetrain movement, but stiff enough to eliminate the large amounts of deflection from the stock part.