Gus_Mahn
Well-Known LVC Member
Does anyone have the 5R55 sorted out. The trans in my '03 LS8 in the most confused trans of any car I've ever driven, though it seems mechanically sound. I know it's an electronic valve body trans, so I guess I'm talking about a software repair. I also know the same trans is used in the new body style Mustang, and it gets great reviews for strength and performance.