Im ordering new gears for the truck 4.88's and was wondering if these are the right ones for the front and rear? Are these good prices? Or is it cheaper to go to someone and be like i want 4.88s installed and they give me a it all together instead of bringing it to them ?

Front:
http://www.ringpinion.com/ProductDet...px?ProdID=1952

Rear:
http://www.ringpinion.com/ProductDet...px?ProdID=5671