The valve-body spacer plate for the THM 4L60-E transmission has changed every year since its introduction in 1993, and the plates will not interchange from year to year. The valve-body casting changed again for model year 2001, and at that time the ID code on the spacer plate went to three digits (Figure 1). The locations of the ID code stamped in the spacer plates are also shown in Figure 1.
The charts accompanying this article identify the spacer plates, which models they fit and the part number for each in case you need to order a replacement. Information for each model year is presented in a separate chart as listed here:
April 2011 Issue
Volume 28, No. 4
- THM 4L60-E: 1993-2009 spacer-plate identification