I purchased from JT the 4-wheel disc conversion, the power steering kit, transmission cooler and a header from them, just finished installing it all. I had no problems getting my parts, yes, they were a little slow on delivery, not great on written responses, but nearly everything arrived that I needed to do the job. I had to source a few bolts and do a little research here on IH8MUD. I called them once, they were helpful. The instructions could be improved but they do warn you that certain mods may be required, there were no surprises. These installations are not for beginners so the instructions are a basic guide. I would recommend JT again.