Truck pulls hard to the right.

What is your question?

We have had a continuing problem with our G4500 Express cutaways in that we cannot seem to get rid of a hard pull to the right. We have installed new wheels, tires, steering box, tie rod ends, springs all to no avail. Have checked the frame and it is true. A specialty shop has performed the alignment directly to specs. Still pulls. Anyone else experience the same issue and find a fix?

How long has your 2016 Chevrolet Express 3500 had this problem?

Since we purchased it.