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(again by the rooster comb).Be careful when pulling down the VB as there are check balls that will come down with it that is between the VB and case.
#Superior 4l60e shift kit install manual
Once you loosen the VB, you will have to take off the link to the manual valve. There is one small 10mm bolt that goes between the 1-2 accumulator and fluid indicator stop bracket. Remember this when you are reassembling to grab your 8mm's and surround the 1-2 accum.
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Before you remove all the bolts, you will see the 8mm bolts surround the 1-2 accumulator housing. There are three bolts with 8mm heads and the rest have 10mm heads. Again it is crucial you remember what bolts go where as there are different size bolts for the valve body. With all that happens inside a transmission its hard to tell whats gonna break first with all the variables for a failure. This will not correct breaking of input/output shafts, pinion failure, reaction sun shell breaking, ect. Again this is a process to help the longevity of the stock 60E due to the issues above. Now for those who ask "will my transmission hold up by doing this for so and so mods / horsepower?" There is not answer to that. This firms or quickens shifts by releasing and applying circuits more efficiently and reducing "overlap".
#Superior 4l60e shift kit install install
As well as glazing/polishing the clutches, steels, drums, band, ect When you install a "shift kit" and servo upgrade you are positively modifying the valve bodies ability to apply and/or direct fluid to the clutch or band apply circuit. This generates heat and removes clutch and band lining at a greater rate. This is also happens on a downshift as well. So for the short time the transmission is in two gears at once they are essentially "slipping" as one or the other has not fully engaged. When your transmission is shifting into a higher gear, the lower gear has not fully released all the way. For example, when you ride your brakes while driving the pads will fail and wear a lot sooner and generate heat right? Take that and convert it over to what happens in a transmission. On a bone stock transmission, overlap is referring to the softness between upshifts (1-2, 2-3, 3-4) and also downshifts. The best way to describe this (at least that I can describe) is to use the word "overlap".