All these series of transmissions, A4LD, 4R44E/55E, 5R44E, 5R55E use the same bushings. I just got off the phone with the manager of my old place. He told me that that business dropped off about 5 years ago. One reason was a Company called Sonnax no longer made the oversized bushing that allowed the line boring. He also mentioned to me that they haven't had many requests for this service so they no longer do it. Sorry I couldn't be of more help. Good luck and I hope you get the problem solved.