T-1574 TOOL, 700R4 / 4L60E Teflon sealing ring installation tool. Makes Teflon seal installation and resizing easy and perfect every time. These are the four rings on the input shaft and they can’t be installed without this tool.
|(Here’s what happens if you install these rings by making an angled cut. (a) The rings get hot, expand and overlap. (b) The rings stick together at the angled cut. (c) Then when they cool off and contract they’re too small. (d) The next time you drive the 3-4 clutch burns up. (e) Even if the rings don’t stick they hold the pressure better if not cut.)
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