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4L60E Transmission Rebuild Page 18 of 29

 
Figure 69
Figure 69

Figure 69. Drill the hole shown with a 1/16" drill bit and install the plug supplied in the Sonnax HP Performance Pack.

Figure 70
Figure 70

Figure 70. Remove the valve body accumulator piston, and the pin. Drive in the two check balls supplied in the HP Performance Pack kit into the hole where the pin was. Stake the hole. Install the pinless accumulator piston and put the assembly back together.

Figure 71
Figure 71

Figure 71. Use a feeler gauge and slip it in between the case and the valve spring in the spot shown in the image, then slide in the shim supplied in the HP Performance Pack kit.

Figure 72
Figure 72

Figure 72. Drill out the holes with the appropriate drill bit as specified in the instructions that came with the HP Perfomance Pack kit this completes the valve plate preparation. The plate is now ready to install.


 
 
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