Ever noticed your gearchange is sloppier than a Roman catholic choir boys' arse on St. Patricks day?

Right, stop crying about it. You will need
x2 nylon gear linkage bushes
x1 steel gear linkage pin
x1 steel gear linkage arm
I have no idea where I got these parts from so dont ask. Just search.
Right, remove your standard gear linkage. There's 1x 13mm bolt where the linkage passes through the bulkhead, and you'll need pliers to pull out the plastic linkage pin from the gear selector fork. Then just pull out the main clip in the middle of the linkage mount.
Here's the standard linkage removed...

Cram a screwdriver in the main pivot bush, and twist/pull.

The bush will come out quite easily. Then just push the bush on the opposite side out from behind using whatever fits.

Replace them with nylon bushes, which are much much stiffer. These just press right back in...


Then...


Thats a steel link bar and steel linkage pin (to replace sloppy std plastic ones!). The linkage bar just snaps on and off, it's a ball/socket type joint like your nan's artificial hip. The linkage pin is what holds the linkage to the gearbox selector fork.
Finished and cleaned linkage

Just stick some moly grease in the socket joints (use a cotton bud) and job done, you're now cooler than Jesus.