[AT] Tire Orientation

[The Allen Family]

Quite a while back, I had a rim on my '48 JD A rot out--I posting something to
that effect here on the list.  Well, after long searches and many 
distractions,
I finally located a really good wheel, rim, and tire for $50.  The tire was
actually brand new, and it didn't match the tires I had on the tractor (one of
which was also bad).  So I had a local tire store find a matching, new 
tire and
mount it on the (relatively) good original wheel.  All OK so far. 

The potential problem lies in that, when I came home last night to 
finally find
everything back on the tractor, I discovered that the tire store had mounted
the replacement tire to the old rim in the same orientation as the 
other one so
that, with the wheels both on the tractor dish out, one tire is pointed
backwards. 

Thus, my question is:  what effect, if any, will using the tractor in various
activities with the tires thus oriented have?  I am *guessing* that the only
problem will be one of uneven traction because of the opposing tread patterns,
and I am *guessing* that this difference will only matter in tasks that 
require
hard pulls, such as plowing, disking, and so forth (I don't do tractor pulls,
but I hope to do some gardening).  I am *guessing* that this difference won't
matter in tasks like brush-hogging, towing a wagon, or on pavement for travel. 

Are my *guesses* accurate, or do I need to call the guy back out for 
the hassle
of changing the one tire around on its rim immediately?

Thanks,

The "original" Steve Allen