FORD ROTUNDA OTC TOOL 307-353 PISTON SEAL SIZER TOOL W1-R4-S21A & LR R24-S95Tools are sold AS-IS and are not returnable. Feel free to ask any questions about the tool prior to purchase. We are unable to test items, offer accordingly. Consulting service manuals, guide, books is always recommended. We are not responsible whether the tool is correct for your application.