Oversize tires can put extra load on your steering components. Be careful when purchasing steering parts. We have found many instances using aftermarket arms that they do not fit correctly on the gearbox. They will fit loose on the splines and will have play in them. Only the OEM GM arms have proven to fit every time.
A worn pitman arm can lead to sloppy steering and accelerated tire wear. Replace worn parts using genuine replacement factory parts. We recommend using the Cognito support kit on your new parts to prolong the life of them.