Last night I was driving my xf when the brake fail light came on, it was coming on dimly and came and went a few times but has since disappeared. Ive heard that this light comes on when the proportioning valve moves too far one way but Im not too sure on what it actually means. The way it came on makes me think that its a dodgy switch but what else can I check to make sure everything is tip top.

Shims usually live behind the upper arm front mount I thought, used to increase caster, by pushing the top pivot point back?   The upper arm clamp, should self center on the ball joint recess, when fully tightened?   And yeah, lower ball joint wear caused excess toe/camber on my BF. It had been previously aligned to compensate, but when I fitted new ball joints, I didn't think to re-adjust. Note - After not adjusting the alignment, it wore the front tyres, within around 15,000km's. When later fitting new tyres, I located whiteout marks for the factory toe settings, and set to those points. Further confirmed, with a DIY string/tape measure arrangement.

Note to anyone doing ball joints, get a wheel alignment VERY soon after. (tyres will chew out fast if it was aligned with stuffed ball joints)

**speaking of.. next time you get a wheel alignment or new tyres and an alignment. ask them if they check the suspension for wear before doing it.. (most don't check anything)
  30 years ago i had an alignment done, the tyres were stuffed in a week (600km).. took it back, ripped into them and for them to reply "it's within spec" and after questioning if they would give  Me a new set of tyres(from memory, they gave me some second hand ones after telling me to get a pedders check.. confirming lower ball joints were buggered, along with idler arm.. )  

Base model may not have the wire either. I had to run one in My Dad's XE when I fitted an s pack cluster. Negative coil and I may have joined a wire to the cluster for it even(not in the socket for cluster either)

Usually the pink/blue to negative 

Think its white/green trace....?   Neg side of the coil.

Hey all, I've got an XD was 250 but converted to 351c, trying to sort the tacho wiring, everything seems to point to pink and blue wire to the coil negative, but the pink and blue wire is on the coil positive. does that seem right.  Engine is from 77 Fairlane but has electronic ignition, not sure if that's original or has been grafted in somehow.  the whole engine and trans wiring job is pretty average, not sure what's been hacked and what hasn't. Thanks

DOOR UNLOCK MODE all doors unlock or just drivers simple process. 
AU2 onwards (says in the video he has other content on ford tips)  

AU Electric Window Switch repair link there's no pics in here. i'll attempt to add some when/if i do mine.    https://www.fordforums.com.au/showthread.php?t=17267
 

This thread on FFAU (fordforums.com.au) has links to basically anything you might need.  look here first. 

https://www.fordforums.com.au/showthread.php?t=11244844