Have somebody wiggle the shifter in your car, and watch that area for slop.
Is it worth doing a group buy on these? They are USD$14 and they quoted $38 for postage, so that would end up being around $AUD65. Surely they couldn't charge much more for a bunch of them in one parcel.
I may buy these anyway as I currently have a box full of neutrals, its disgraceful when comparing to a modern box/shifter.