I pulled the radiator it was about a 3 hour job. I took it to a radiator shop that was recomended to me by friends in the trucking business. They said to get away from the aluminum one espescially if you are going to spending a lot of time back east. they told me there, that salt builds up quicker and the electrolyze tends to break down the aluminum ones quicker. I am not an expert in this area I am just going by what they said. The radiator shop told that the radiator on the sparten chassis was made by volvo. So I ordered the new one which was picked up yesterday it all metal or brass it is an exact match to the old one. I thought I would post this to see if buying this one was the right thing to do.