Welcome to the site !!
From what i am seeing , they changed part numbers several times thru the years , what significance that has on the actual fitment i can't say , but from 04 to 05 they changed the Right case part number , from 05-06 part numbers stays the same , then 07 they changed the Left case part number , then in 08 they changed both Left and Right case part number , and again in 09 they changed both Left and Right case part numbers , so you have 4 part number changes from 04-09 , 08-09 being the most significant numbering changes , again what bearing that has on actual fitment i can't say , but if at all possible i would stay within the years that would match your particular year case , just to be sure you do not run into any fitment issues .... , you also did not mention what year your case is and what year the case your wanting to cross is