The Fabco Nut Special HNU Shifter, part number 688-0643 or 6880643, is a shifter hardware component listed in the illustrated parts manuals for the Fabco TC-33, TC-35, and TC-38 transfer cases. In the TC-33 and TC-38 manuals it is called out alongside the shift cylinder tube and air shift cylinder capscrew respectively, placing it within the shift cylinder assembly. The TC-35 manual lists it as a standalone hardware item. If you need to confirm this is the correct nut for your transfer case application, call us and we can help verify fitment against your unit.
Features
Genuine Fabco part number 688-0643 or 6880643
Fits Fabco TC-33, TC-35, and TC-38 transfer cases
Listed in shift cylinder assembly sections of TC-33 and TC-38 illustrated parts manuals
Also catalogued as a standalone hardware item in the TC-35 parts manual
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