Today on this 2005 Jeep Grand Cherokee were going to do a test fit of part #: a90275 from sport rack. This is the aero XL cargo box. Now our Jeep has already been equipped with a Thule roof rack system using the aero blade bars. All we got to do for our test fit is take our cargo box and place it on top of the roof rack. When we put our cargo box on top of the roof rack we can center it up in the… see more >