At TransmissionKits.Com there is a parts listing in Precision International’s [PI] aftermarket catalog where I found a much more descriptive name for what this K-1 kit might/should be called… “ Clutch Piston Retainer Repair Kit ” and PI has separate kits for the 722.3 and 722.4 trannies that address both K-1 and K-2 and yes.



The Clutch Piston Retainer Repair Kit mention above, are only used when rebuilding the transmission, they are an internal kit, for the drum piston retainer seals in the K1 and K2 clutch drums, inside of the transmission.






Try this test as it may answer your questions, remove the steel Accumulator cover on your valve body the only steel plate with three bolts, remove the first spring then the steel piston, once the steel piston is removed you will find two springs behind it.

Remove those two inner springs and replace them with the single long heavy spring found in the 722.3 K1 kit # 126 270 44 77. Road test the car cautiously, I am guessing, all the up shifts should be firm. And might cure your 2nd to 3rd flare.


Adjusting the modulator and the control pressure rods will achieve the same as above, if the valve body is not worn or damage. See below.

The 722.0, 722.1, 722.2 valve bodies use steel check balls in them to control, divert oil, these balls do damage to the valve body and aluminum housing and plate. It’s a common problem with the early transmission.