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4L60E Transmission Rebuild Page 11 of 32

 
Figure 34
Figure 34
Figure 35
Figure 35

Figure 34. Install a new bushing in the sun gear. We chose to use the Sonnax Wide Sun Gear Bushing, to give more surface area on the shaft.

Figure 35. The picture shows the sun gear installed in the Sonnax Smart Shell. The stock shell is prone to breakage and cracking. As you can see in the photo, there is a torrington bearing between the sun gear and planetary and the shell. this is one of the big differences to keep it from failing, along with thicker metal. The stock shell just uses a plastic spacer.

Figure 37
Figure 37
Figure 36
Figure 36

Figure 36. Coat the sun gear, and bushing with transmission fluid, then install it in the planetary. Dunk the torrington bearing in transmission fluid, then lay it on top of the center support.

Figure 37. The small inner race goes toward the smart shell.


 
 
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