I made one for my srt6 i used 3" and 2.5 pipe and a 3/8 plate (round of course) drilled hole in center , 1/2"thearded rod washer with an old bearing i found in the shop (bearing goes between two 2" washers to allow u 2 pull the bushing into the 3" pipe.
haven't seen it in a year , as we moved the shop 3 times , but easy to make.