I agree that the 10.50 would have worked out fine on that wheel. It's only when the wheels bring the tire out farther that you start to have clearance issues in the back (and the front too sometimes!). At least "usually" that's the case. %)
My rule-of-thumb is that you can easily go 4" wider on your tire than your wheel too, so a 10.50 on a 6" wide wheel is not an issue unless the tire specifically is of a type that doesn't like that.
And by the way pbets, if you haven't run around with these things before, you DO realize that this type of tire you're wanting is going to ride, handle and wear like crap.
Correct?
Just checkin'...
If this is just a fair-weather weekend short trip kind of rig for you, that should not be an issue except for the thump-thump-thump you'll get for the first few miles each time you pull it out of storage. But if this is a regular driver, and expected to go down the main roads with you and your family in tow, and in variable weather conditions, I would consider a completely different type of tire.
What is your expected use for it by the way?
Paul