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JDT4 shift blocker spring & ball sleeve john deere 4020
JDT-4 Shift Blocker Spring and Ball Loading Sleeve Tool
For John Deere 3010 3020 4010 4020
This specialty tool is used to load springs and balls into low and high range synchronized blockers on transmission drive shafts of John Deere tractors. Our tool is made from the same specifications as the John Deere tool, JDT-4. It was made from a piece of 1018 steel and turned on a CNC lathe. After being machined it was given a black oxide finish to prevent rusting.
It is known to work on John Deere 3010, 3020, 4010, and 4020. It could possibly be used on other 3000 series and 4000 series tractors. Below are two scans from a JD 4000 Series Service Manual 1963, showing the tool in use.
