My car is a 4.4 V8 but I have fitted the larger brakes from the 4.8is so I have the problem with my original 17" spare only fitting on the rear , after much searching I now have a 19" spare but when I swapped it with the 17" in the boot being as its not got as wide a tyre it rests on the cover for the air suspension pump is this normal or am I needing to source something to allow correct fitment.