GFX Product Review: 4L60 & 4L65 Shell

GFX Product Review: 4L60 & 4L65 Shell

OBD-II was introduced in 1993, along with electronic controls and the 4L60E. Simultaneously, the 700-R4 was renamed the 4L60. Although the two transmissions share a name and some parts, they are not the same. When GM upgraded some key internal parts that were failing...