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4L60E Transmission Rebuild Page 15 of 29

 
Figure 57
Figure 57

Figure 57. Install the reverse input drum on the input drum and make sure the teeth of the sun shell are engaged with it. Make sure it is all the way down. It may be easier to put the input drum and reverse drum in as an assembly. Now is the time to check the input shaft end play.

A pump rebuild will not be detailed in this build, a complete assembled performance pump was purchased so it would not be necessary. Set the pump gasket in the case, then make sure the outer pump o-ring is not on, and set the pump in the case and snug down a couple of the bolts. Now you can take a dial indicator and check how much the shaft moves back and forth.

Figure 58
Figure 58

Figure 58. End play should be between .015 and .030. As seen here, we have .018, and we are good. You can adjust the end play buy either buying a thicker or thinner selectable washer to put on the input drum, or getting the ten pack of .015 shims from Sonnax.

Figure 59
Figure 59

Figure 59. Once end play is set, remove the pump, dunk the torrington bearing that goes on top of the shims. Put the o-ring on the pump. Lube the case and pump o-ring. Install the pump into the case. Be careful not to tear the gasket. Install the bolts and torque to 18ft lbs.

The rotating assembly is now complete. Now we will proceed to installing the valve body, and buttoning up the rest of the transmission.

Figure 60
Figure 60

Figure 60. Installed Russell Performance 6 AN adapters in place of the stock cooling line fittings. The new cooling lines will be braided stainless steel.


 
 
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