Here we go for anyone who wants to do this conversion i will do it step by step it does work, 1st disconect battery!
1) Undo the 2 nuts holding the wiper arms on and remove wiper arms
2) Take out the 11 screws holding the scuttle pan in place and remove it
3) On the passenger wiper side you will find 2 push fitting arms one goes to wiper motor the other goes to drivers side wiper pry them off
4) Undo the 3 10 mm bolts holding the passenger side wiper mechanism in place and remove it
5) On the back of the larger ball you will see a mushroom shaped weld grind this off and using a punch tap the ball out do Not damage the ball
6) measure 15mm from the centre of the hole where the ball came out of towards the middle of the mechanism and mark it with a punch this must be smack on 15mm away from the centre of the hole
7) Drill a new hole exactly the same size of the hole the ball came out of
8) Push ball back in new hole and reweld it in place
9) Refit the mech in place with the 3 10mm bolts and tighten
10) Turn on ignition and put wiper onto intermediat go to front and touch battery on watch the wiper mech turn and make sure all is clear when the motor stops at its rest position take battery wire of again
11) Push the wiper motor fitting back on to the mech not the one that goes to drivers side
12) Refit passenger wiper arm and tighten in its normal rest possition now touch the battery back on and watch as your single wiper clears the whole screen, Are YOU happy if yes go to drivers side wiper mech and remove the 3 10mm bolts holding it in place and remove it along with the conecting rod place on a shelf out of the way as no longer needed
13) remove passenger wiper arm and put scuttle panel back on to fill the hole where drivers wiper would have been i used a plastic cap off a paint roller it does fit
Your new single wiper will work as normal all 3 speeds photos and vid are on here to watch!
Good luck it took me an hour to do this to my car:-
Grind This Off:-
Tap this out:-
Measure 15mm centre:-
Weld back in:-
Here's a video of the finished wiper:-