Recently I brought in my 2010 Raptor to Murray's with a Whining /Grinding noise that I could not figure out . The findings were interesting . Worn out Pinion bearing in the differential . Discontinued parts and such had the Owner scrambling for parts and splines and bearing that were all compatible . It all come together and the truck is back on the road in Perfect condition. They went the extra mile to make this all work and its appreciated . Mark Kelley