If the front tires are matched they will not cause pull. To completely eliminate pull you might need tires that are the same size and brand and have the same amount of tread and inflation pressure. With only 900 miles this should not be a problem. Try switching tires. If you switch front to rear the pull should disappear. If you switch the front tires left to right you might make it pull in the opposite direction. If you can narrow the problem down to one tire it could be because of a defective tire e.g. a bad belt.

wrote:
>
> Have a new Expedition with 900 miles on it. Truck pulls to the right
> slightly. Dealer said the alignment was dead on, and it maybe radial
> pull. Is this possible on new tires?

--
Mike Walsh
West Palm Beach, Florida, U.S.A.