What should a person expect to pay for a gear swap? It's for a 2004 Silverado 2500 non HD 4x4. I'm going from 3.73 to 4.56. I've called several shops in the area and asked for estimates and none have replied yet. I called one shop in Minnesota and they said it would run about 3000.00. Is that about right or does that seem high? I'm located in northern Wisconsin if anyone has any suggestions on shops... Thanks, Dave.