Here’s a link to their home page:Well to be honest I don't know how to post the link to it on here it just hasn't let me. But it's call American iron ball joint delete kit. I've got 163k on my second set and they are made by motorcraft bit don't have a grease fitting. I want them to have a grease fitting. I have read the reviews on these ball joint delete kit and all seem good but I do tow my tractor and I have a bobcat etc.. I just don't know anything about it and any input would be great. Thanks again