The Arrowmax AM-174005 AM Differential Checker is built as a bench tool to assist in setup and tuning of R/C differential units. It helps technicians and hobbyists run consistent tests to observe rotational feel and detect irregularities without implying direct chassis compatibility.
Rotate the differential by hand while the unit holds it under light load, note areas of resistance or play, and use the results to guide changes to differential oil, clutch assembly, or rebuild strategy. The product is best used to reproduce conditions for comparative tuning steps.
A reliable bench companion for comparative testing and documenting changes during R/C differential setup.
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