I ordered a front sway bar and fuel sending unit for my 66 Belvedere. Sending unit came and was not like the original, the one they sent had a return line I needed to figure out how to plug. I called and they said it was the right one and just plug the return. Also, my car has a 5/16" fuel line and the one they sent was 3/8". I contacted the manufacturer of the $60 sender and they had no reference to that particular number, they said it was probably a specific unit made for Summit. I will try to install it but told Summit my concern was if the sending unit was going to be accurate in m car. Second item I ordered was a ADDCO sway bar. Before i ordered it i did some research with ADDCO and found out it was a 15/16" rod when Summit advertised a 1 1/16". I called Summit and they told me if ADDCO says it is 15/16" then it is what they said and Summit catalog is wrong. Part came in a box that looked like something someone made in their garage out of used cardboard, and when i opened it the bar was scratched up like it was installed before. When installing, the ends were not aligned with the dropdown rods (the ends were twisted)? And they were not the same angle on either side. I do not send things back and got the bar to work. But for the money spent it was interesting. I am very dissatisfied with Summit, i have used them in the past with no issues but this was different.