greddy sts lower bushing size

[SullivanRacing06]

the new lower shifter bushings came in from mckinney the other day (thanks mack) and they fit the stock shifter great, but im still in need of the greddy short throw lower bushing, it has a larger lower ball which fits inside the bushing, so ne ideas on where to locate this? dose ne one know where i can locate the metal lower shifter bushing for the larger lower ball? thanks everyone!