Ok, here goes...
Tools:
- Jack and axle stand(s) - I did it by only lifting one side (passenger) of the car, but it's a bit of a squeeze.
- 13mm socket/ratchet
- Copper grease
- Maybe a wire brush if there is a lot of rust
- Hacksaw (fresh blade very handy!)
- Something to scratch a line with (not essential but worth doing it you can)
- A friend who can hold a gearstick in position (handy but not essential).
Time:
Took me about an hour however I didn't mark the position before I started (schoolboy error) and was faffing around taking pics/working out what to do next throughout.
It's not a hard job to do, but a bit frustrating with only axle stands and a jack, since there is not a lot of room to move and you'll be hacksawing under the car for a good 10 mins - what you need to cut through is ~15mm solid steel bar!
Here's what you are working with (paint FTW, haha). The bit you need to undo is the red blob, cut down the grey arm, then re-join - moving the gear knob closer to you. I cut off about an inch in the end but I checked and there is scope for more, maybe 1 1/2".
Here's where you are working, looking under the car from about where the nearside/passenger door is.
And again looking from the front of the car (easiest to work from here I think, especially if you are right-handed).
Before you start, have a look at the clamp and you will see a split in it. If you can scratch along this split and then maybe 2" along the gearbox shaft that will help with re-alignment at the end! If not then don't worry, it can still be done fairly easily.
Undo the nut (13mm), if it's seized/manky give it a good going over with a wire brush then you should be able to get the socket on no problem. Pull it right out and copper grease it up. You can see the silver bit on the selector shaft (male bit) where the linkage (female bit with pinch bolt on it) clamps on. (Those are terms I've made up, probably nothing like the 'proper' names!)
I started with a hacksaw then got bored, so took a grinder to it - I can't really recommend this, since once you are about 1/3 the way through it will start to grab and try and rip your hand off
After nearly s**tting myself a few times, I then found that you can angle the selector shaft towards the offside/drivers side and slightly forwards, pressing it against a nice solid bit (think it's one of the mounts for the dogbone). This will allow you to get more purchase with the hacksaw without the shaft flopping around all over the place (that's what she said).
Once you've removed the desired amount, re-assemble. Now, I like to know what's going on and why things are behaving as they are, but if you're not bothered skip to the next bit!
Since you are now upside down, the whole gearbox is flipped. The photo below is looking from around the passenger seat. From neutral, pull the bar towards you to go into 3rd, down and towards you for 5th, up and away from you for 2nd, etc. I found the easiest way to re-align everything was with the box in 1st - so the gearstick sits up against that 'lump' on the side of the housing. If you have someone to help you can put the box into 1st, then ask them to hold the gearstick to the left, and it should all go back together easily.
If you have lost some gears once everything is nipped up again, loosen off a little so the two shafts can rotate around each other but aren't too loose, then rotate the linkage as below. Small adjustments are all it takes, I went past and then back too far before I got it right.
Here's how it sits now, showing 2nd and 3rd. Certainly feels a lot more comfortable. Plus I can shift 0.0001s faster now and become a trackday hero!
Any questions just shout, although I'm off home now and probably won't be back at a PC until after the weekend...