Definitive AU1 to AU2/AU3 brake upgrade thread

[auxlr8]

Thanks for that. Planning on changing to ba 303mm caliper and rotor

[auxlr8]

so territory is 328mm ventilated and twin piston and also bolts up to standard lines with spacers? That sounds like an even better option

cheers

[PG2]

Originally Posted by auxlr8

Thanks for your reply. When you say u didn't even disconnect the rear caliper, how did that work? Standard ford au irs is a solid 287 mm disc and single piston caliper. The ba rotor is 302 mm ventilated and the ba rear caliper is twin piston from what i understand. Either way thanks for clarifying that the standard/braided au irs rear lines will attach to the ba caliper. My apologies for the extensive questions, just getting my head 100% before the job is tackled.

Cheers

Originally Posted by tkfd

The BA is still only a single aswell, but larger piston and pad area, plus of course larger rotor to suit.

Don't know what PG2 means either ? But aren't you changing to the 328mm rear rotor (territory/BFGT)

I didn't remove the caliper from the brake line. I just change the saddle that the caliper sits in.

[tkfd]

Originally Posted by auxlr8

so territory is 328mm ventilated and twin piston and also bolts up to standard lines with spacers? That sounds like an even better option

cheers

That's what I did, but caliper is still only single piston, but with larger pad area, larger piston. I made custom lines up.

Will need the 3mm spacer (I actually used a 3mm wheel spacer behind rotor to clear wide wheels, but recommend you use the 3mm washers on caliper mount)

[auxlr8]

Thanks guys for all your help. Im lucky enough to have a mechanic for a mate whos going to help me/show me how to do the front and rear conversion but want to make sure i have everything i need first

Thanks again

[tkfd]

...I also drilled out a hole for that grub screw, as Territory/BFGT rotors done have one. Also watch AM toe-link balljoint as the AM ones are fatter than OEM and come awful close to rotor. I just knocked off 1-2mm off the balljoint casting on the grinder, its only casting daggy bits anyway.

[Silver']

Post #30 tries to explain the lines.

https://fordforums.com.au/showthread.php?t=11377772

I did the same with my aftermarket toe-link end tkfd. So far, they haven't failed!

[auxlr8]

Is the grub screw actually needed? Wont the studs and wheel nuts locate the disc anyway? What have you guys done in regards to the dust cover? Im thinking of just completely removing it?

[Silver']

Originally Posted by auxlr8

Is the grub screw actually needed? Wont the studs and wheel nuts locate the disc anyway? What have you guys done in regards to the dust cover? Im thinking of just completely removing it?

If you mean the stone shield, I ended up removing it.

If you mean the rubber grommet that covers the adjuster, I used BA ones (on the right in this picture.

[auxlr8]

What is the rubber grommet for? This is the first time ive heard of it

cheers

[Silver']

The hole in the rotor for handbrake adjustment isn't covered by the wheel so a grommet seems like a good idea.

You can see it in this pic.

[auxlr8]

Thankyou, makes perfect sense now

[wobblysauce]

Silver', Do not think they're referring to the Handbrake hole but the tapered one that alines the Disk to the Hub.

[auxlr8]

I was referring to the locating hole on the disc as my understanding is that its really not needed as the studs, wheels and nuts locate the disc anyway but it was good to find out the info on the rubber grommet for the handbrake hole.

Thanks again for all the info

[tkfd]

Originally Posted by auxlr8

Is the grub screw actually needed? Wont the studs and wheel nuts locate the disc anyway? What have you guys done in regards to the dust cover? Im thinking of just completely removing it?

yea gotta remove the dust cover, a lot of swearing will happen as its fiddly,

The grub screw isn't really needed, but I think why they put it there is for when you adjust the park brake. You cant do with wheel on. The rotor needs to stay square. Guess you could nip up all the wheel nuts.

I put the grub screw in.

[Silver']

My 328mm rotors didn’t have any provision for the grub screw. I’d use it if it was there.

[auxlr8]

So guys I don't know if I'm doing something wrong or I have some wrong parts. I've got the lower control arm and upright assembly as one piece on my garage floor and loosely looking at how the ba carrier and caliper bolt onto the upright and it's just dosnt look like it will fit. The bottom ba bolt might but the top bolt looks to short to fit on the au 3 upright and even if it did it looks like it's too far in towards the body for it to go over the disc. Am I supposed to be using the au3 bolts on the au 3 upright with the au3 carrier and then attach the ba caliper to the au3 carrier? A little confused now, any advice on what I'm doing wrong?

Cheers

[Uncle_Ken]

Originally Posted by auxlr8

So guys I don't know if I'm doing something wrong or I have some wrong parts. I've got the lower control arm and upright assembly as one piece on my garage floor and loosely looking at how the ba carrier and caliper bolt onto the upright and it's just dosnt look like it will fit. The bottom ba bolt might but the top bolt looks to short to fit on the au 3 upright and even if it did it looks like it's too far in towards the body for it to go over the disc. Am I supposed to be using the au3 bolts on the au 3 upright with the au3 carrier and then attach the ba caliper to the au3 carrier? A little confused now, any advice on what I'm doing wrong?

Cheers

Got any pics to show us?
UK

[auxlr8]

Trying to work out how I can attach pictures mate and that's a struggle atm too.

[JC]

Originally Posted by auxlr8

Trying to work out how I can attach pictures mate and that's a struggle atm too.

When you quote a post to reply, there is a box below the message box called Additional Options. One of these is manage attachments - click this and then browse to the pic on your PC, and upload it/them.

[auxlr8]

Originally Posted by JC

When you quote a post to reply, there is a box below the message box called Additional Options. One of these is manage attachments - click this and then browse to the pic on your PC, and upload it/them.

I'm using an I phone is that why I can't attach?

[auxlr8]

Struggling to upload pics from my iPhone. I'm thinking maybe the wreckers gave me the wrong lower arms and uprights maybe. On the passenger/left side with the curve of the lower control arm facing forward and stamped LH the caliper position is still facing the rear as per my current series 1 where it should now be forward as per series 3?

Cheers

[BlueBear]

Sound like the wrong upright, should definitely be mounted on the front of the axle line.

This is mine part way through the conversion, the suspension changed over, but the old caliper still hanging there - drivers side.

Cheers,

[auxlr8]

Yep, thankyou for that photo, it does appear they have given me the wrong upright and lower arm assembly. No wonder why I couldn't quite work it out. Thanks heaps. I'll go back Wednesday after cup day to get the right parts. Should my ba carriers and calipers use ba carrier bolts or should I be using au2/3 bolts?

Cheers

[JC]

These are the pics of the parts auxlr8 was supplied with:






Sent from my iPhone using Tapatalk

[JC]

Are they AU1 spindles with AU2/3 sway bar bits? Or could they be the spindles for premium brakes?


Sent from my iPhone using Tapatalk

[auxlr8]

When I went to the wreckers I asked for au 3 lower arms with hubs and spindles, uprights and au3 sway bar and mounts. It's taken a month for them to have the time to get it all together and it now looks like they have accidentally given me au3 sway bar, mounts and links but with au 1 lower control arms and uprights.

[BlueBear]

The uprights aren't just on the wrong bottom arms are they?
Has the bottom balljoint been disconnected?
If so, just swap over the uprights and see if they look right, just that they look correct from my recollection. For example, the ABS sensor is in the correct position, they are on the front side of the series I stubs...

Cheers.

[auxlr8]

Nah it was removed as one piece with the lower arms and uprights still connected without the ball joint broken and still connected. I'm thinking they have just given me series 1 lower arms and uprights with a series 3 sway bar and mounts?

[auxlr8]

So I went to back to the wreckers today with all my parts and begin to have a crack that they gave me the wrong parts.... luckily before I opened my mouth the owner took me to the donor car.... indeed a series 3 au. An xr6 that for some reason had sseries 1 uprights on it which then led me to believe it had the premium brake combination that indeed used series 1 uprights on a series 3. Would anyone know if this premium option that used series 1 uprights were twin piston caliper and what sized discs? I've got the wreckers now looking for those original calipers in case they are twin piston and may bolt straight onto my au1 Fairmont ghia.... bit of a long shot but maybe?

Cheers