I would either use a razor knoef to cut along the shifter mounting plate or a sewing marker to markey then cut it with you wifes best sheers.(then when she says somethen about them not working as good as they used to, just tell her to go buy some new ones they dont last forever, and then you can have those) also check to be sure the shift buishing is greezzed up nicely on the shaft,I use synthetic greezzee as it dosent dry out&DONT GET HARD IN THE WINTER!! oops wasent yellen ,big fingers& bad joints.
I made the mistake of usin a special greezzee on my wiper assy on my bug, it's some expensive slipery stuff, but when cold gets way to thick&stickey,my wipers wont hardly work. (thats when I started thinken about what greezzee to use where for all temp usage)