We ordered a dipstick tube adapter for a 7.3L Powerstroke which worked perfectly. The installation instructions are thorough and answer all questions that might arise. This is a phenomenal product which reduced the downtime on the truck and saved our customer a considerable amount of money in labor as the oil pan does not require removal for installation.
Good support, phone calls were returned as promised, and nice folks in general to talk to. Looks like following a solid business plan is paying off for you!