I am rebuilding the 727 out of my truck and I know that one of the biggest problems these trannys had is that the lube circuit is not pressurized in Park, I have heard that the make kits with a new manual valve that fixes this problem. My problem is that I have not been able to find anyone that sells these kits. I checked with Sonnax and a few others but have had no luck. Anyone know where I can find this? Thanks for any help.
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