Ok, I picked up a used 16' by 7' trailer. I'm going over it, re-doing parts of it here and there. Already re-did the lights and the flooring. Gonna get trimmer racks on order real soon and all the accessories to make it look good. Got spray paint in the shed to cover it. Took a look at the tires.. First off, it's a dual axle trailer. The passenger side, front axle is bent back. Looks like the previous owner hit a curb (or 2 or 3 or 18) and of course that tire is worn down, almost to the metal threads. I'm gonna try to have a friend use a torch to heat the metal and use a come along to bend the axle back. Right now, it's gotta be like 30 degrees off on angle. It's obvious from an over-head view, especially when you've torn the floor of the trailer off and are putting a new one down. <G> So, here's the tire situation: all tires at 20.5*8-10 Driver side, front: Goodyear Trailer Service tire, rated at 905 lbs cold at what looks to be @ 35 psi, cold, load type is "B". Tire is "ok" Driver side, rear: Deeston, rated at 1535 lbs cold @ 90 psi, load rated at "E". Tire is in "good" condition. Passenger side, front: Carlise 4-ply, rated at 1330 lbs @ 70 psi cold, tire is 100% SHOT to heck. Worthless. Passenger side, rear: Deeston, rated at 1105 lbs @ 50 psi, cold, 3 ply, load type is "C". Tire is "ok". I did searches on lawnsite, found nothing about trailer tires. Did google.com searches for trailer tires, and didn't find much. I was going to try to get 3 more Deeston, E rated tires to match the driver side rear, but so far can't find them around. I did find Carlisle USA Trail HWY S 20.50/8.00-10.00 at www.stopandgotires.com. Price is $51 each, and they are "E" Rated, which is the 1535 lbs limit. Currently, I'm not towing much at all, but I want to be SAFE and have no tire problems, allowing for future growth. For the price of $40 per tire or $51, I'll do the extra $11 all around for an extra $44 to be safe and have a better piece of mind. How bad is it to MIX tire brands? Do I need to replace the 3 tires I listed as "ok" or "good" or should I get a set of all 4, new? What kind of tires do you guys run (what brand), and where do you get them from? Thanks!