Older thread but I just finished building my ripper setup for my TL130 Saturday. Tested it out Sunday and its perfect.. We have a few bare spot a disc wouldn't break up so I built this using inspiration from this thread. Worked like a champ.
For the mounting plate I used and old set of forks. Cut and notched the bottom using a torch then welded in a piece of 4x4x1/4in square tubing 5ft long. The rest I used 1/4in flat bar for re-enforcements and 2x3x1/4 rectangle tubing for the shank mounts