I was wondering if anyone has experience running something besides 225-70r19.5 on 6.00x19.5 rims. I am looking for something a little larger for my F450, but I love the stock Alcoa rims. I know the max sizes for this rim are 8r19.5 and 225-70r19.5, but I have read stories of people running up to 285s on these rims. I bought the truck used and it came with 285s, so I personally know I will not go back to this size, as they rub and are not wearing well at all in the rears (fronts are actually wearing pretty well surprisingly). If anyone has pictures of 8r19.5, 245-70r19.5, and 265-70r19.5, that would be a huge help. I am just looking to see how well the tire wears in these larger sizes, if there's enough gap in the rear still, and how much sidewall bulge there is from the narrow rim. Any personal feedback with larger tires would be great as well. If the 8r19.5 wasn't so hard to find, it would probably be a good choice, but then again, it is a very narrow tire and I do drive this truck in fields and on gravel roads quite often. Any feedback is welcome!

Hurst

 

8 r 19.5's are tall and skinny and are usually found on bread trucks and motorhomes, I don't think you would like them. I'd suggest the 265's but I don't have any pics for ya.

 

I was considering 265s, just worry about rubbing and bulge still. 245s are pretty common, so I have seen a couple pictures of those on the same size rims and they look like the tread is pretty flat when mounted and inflated. Ideally someone would make some 6.75 or 7.5 alcoa rims that fit this bolt patern for a reasonable price and then all it would take is a little more money... just like everything in life, just takes a little more money