Looking to purchase four whitewall tires for our 58 overlander and having a hard time find ones that are trailer rated. Have looked at Coker tire and they have the size we need 225 75 R 15 but they are not trailer rated. Coker says we can use their tires 4 X 1800lb rating per tire = more than the weight of our trailer. I am not to comfortable with this considering the lack of trailer rating and the cost. Looking for any advice on where to find these tires or will the Coker tires work. I have seem many restored AS online and some have whitewalls, where do they get them? Thank you to all that reply!