Recommend me a tire

First of all, I know next to nothing about tires and I'm not much of an auto enthusiast, so please bear with me.

My current tires are Pro Comp Mud Terrain M+S 32x11.50 R15LT. They came with my truck when I bought it 2 years ago. Last year I punctured one of the tires with a nail, and last night it started leaking air again. I thought it might have been because the valve was depressed, but I hand pumped it back up to about 20psi and could hear the leak at the patch. Is it possible to patch it again, or is it a one time fix?

If it needs to be replaced (which it does long term....may as well do it now), I'm not sure what path to take. Should I replace the single tire? Get two new tires up front so there's no uneven wear? Or just replace all four tires with those "Buy 3, get 4" deals going on these days?

Assuming I replace all four, are there any suggestions for tires? I mainly use the truck for work (highway/city driving) but take it out on trails once or twice a month. Plus T100's just look that much better with mud tires.

I'd at least replace a pair. If you have the $ go for all 4.

The Pro Comps aren't to bad, BFGs are real good, as well as any of the Interco line (Swampers) except Thornbirds. BFG also has a budget brand (MudKing) which are good. I don't care for any of the Goodyears, but a lot of people do. That's from an offroad/traction viewpoint, the extreme aggressiveness of Interco tires doesn't make them the most suitable for a DD as far as wear goes, but I was surprised how well my TSL radials behave on the road, and in rain, for such an aggressive tire.

my .02

I guess that depends on how much money you have to spend. I currently have some Yokohama Geolander A/T-S LT235/75-R15 tires on my T-100 at the moment. Been doing fine since 2 years ago...not sure I'd go with anything else as it's been working just fine fer me. :D

You should be able to git the tire patched again...it might even be under warranty since patch repair work isn't supposed to leak. What's the manufacturer date code on the tire? I would use that as one of the indicators in replacing a tire...besides wear or balance. :D

The plug is on the sidewall. I took it to the local Chevron (hand pumped it up to about 25psi) and they say they won't touch it for liability issues. I originally took it to a smaller shop near where I got a flat, and they said that they won't warranty the plug because it's illegal to do in Canada.

I've been reviewing a few tires and I've seen alot of comments on Pro Comps sidewalls getting punctured very easily. To get a replacement tire that matches would cost $278 (mounted and balanced), so about $600 to replace two.

They have a 3 for 4 deal on Pro Comps, so I could downgrade to AT's, but they run $220 each so it'd be $700 to replace all 4.

I'm just not sure if I want to stick with Pro Comp if their sidewalls have issues. Does anyone of any other 3 for 4 deals in Canada for decent AT/MT tires?

http://i775.photobucket.com/albums/yy40/Reggie_Died/th_000_0024.jpg (http://s775.photobucket.com/albums/yy40/Reggie_Died/?action=view&current=000_0024.jpg)

http://i775.photobucket.com/albums/yy40/Reggie_Died/th_000_0025.jpg (http://s775.photobucket.com/albums/yy40/Reggie_Died/?action=view&current=000_0025.jpg)

http://i775.photobucket.com/albums/yy40/Reggie_Died/th_000_0026.jpg (http://s775.photobucket.com/albums/yy40/Reggie_Died/?action=view&current=000_0026.jpg)

http://i775.photobucket.com/albums/yy40/Reggie_Died/th_000_0027.jpg (http://s775.photobucket.com/albums/yy40/Reggie_Died/?action=view&current=000_0027.jpg)

This is the current tread left on the tires. I don't know their age, but when I purchased the car in Feb 08, the previous owner said he "just got them". I've since put on about 20,000 miles on the tires. Reckon there's enough tread left to just replace the 1 tire? If you guys think I should replace at least 2, then I might consider the ATs for a bit more money.

Most tire manufacturers have a chart on they're websites giving all the specs.
See if you can borrow/buy a tread depth gauge, measure the depth in several places on the bad tire, and compare it to the spec. Then you'll really know how much it's worn, and go from there.