It's a pain to mount the brackets under the crossbars because of low clearance.
But with patience and persistence you'll be able to do it.
I didn't use the rear rack end piece because it came in contact with my gobi ladder when the lift gate was open. So u removed it and I was able to mount so...
They are too small to fit into the center hub of the stock trail rims. They would not sit flush against the stock axle end covers. Having the spidertraxx spacers give you a inner lip to mount the trd center caps flush with the rims.
These are center caps I bought off amazon.
I had to break...