I found that in the 215/14 range the best I could find was a load range c which has a capacity of around 1800 lbs,I switched to 225/15's a few weeks ago,had to buy new 15 x 6" trailer rims but then I was able to get load range d 15's. They are rated at 2500lb's each which gives me a total load limit of 10,000 lbs,my boat and trailer are right around 7000 lb's which put the 14's at 100% of their limit,I now have some safety margin. If you already have 15" rims just buy good tires that are at least load range d and you will have plenty of margin with a 8000lb total weight. I'm not aware of any load range e trailer tires in the 225/15 size or I would have got them. I just drove to Fla and back and I put the old Duramax on the turbo for 1400 miles each way never gave a thought to the tires like I used to have to. No problems other than some **** bag tried to steal one of my new tires and rims at the bay of pines va boat launch in Pinellas,I pulled out of the parking lot and one of my tires started wobbling then turned sideways on the trailer,2 lug nuts were left on by 3 threads,the other 3 were laying where I parked,I doubt they fell off in the parking lot on there own after driving 1400 miles without loosening,Smitty
