Square top shifter boot needed.

I have a 73 Dart Sport 340,4 speed and installed a pistolgrip shifter.My boot is round at the top and stretched it to make it fit over the rectangle shifter lastyear.Well I jst took the car out of my storage shelter and noticed the boot is torn at the top.Will a B-body,C-body boot work?Does anybody have one to sell?How much?Any help will be appreaciated.Thanks.