which uprights for Cayenne brake swap on my B5 A4?

[JK35]

Itlooks like late B5 S4 aluminum uprights or any B6 or B7 aluminum uprights will work with the 18ZL / 18ZR Porsche Cayene 6 pot calipers (as far as bolting right on goes)

What I am having trouble finding out is: which of these uprights are going to offer the easiest integration onto my 1997 B5 A4 Quattro (1.8t, 5spd manual)?
I would like to be able to use my own axles and control arms. Is this possible?
Someone just told me that if the uprights come off of a 1.8 or 2.8 manual, that the axles I have are fine, other sources dispute that.

i found a nice pair of uprights today, but they are off an automatic equiped B6 A4. they're aluminum, I am pretty sure the caliers will bolt right up, but as for axles and control arms? '
well, hopefully someone will lay out some info?

I'm working on a writeup on the Cayenne brake swap for B5's, as I haven't found much out there.
And I know there are many of you who are interested in this modification. (I sure am!)

Any help will be greatly appreciated
thanks
Kyle

[A4Rob]

You will need S4 axles for the S4 aluminum uprights. Also the lower front control arms will be different on the B5 S4.

[f15046]

The only S4's that came with aluminum uprights are the early 2000's.

I have swapped the aluminum S4 uprigths onto my car along with the S4 brake setup. You will need different front lower control arms. (I would order them from FCP-Groton). Your best bet with axles is probably 2001 A4 axles. They will work perfect. My A4 is a 2001 so my axles worked perfect. If you decide to use S4 axles you will have to get the part that goes into the transmission and bolts to the axles.

There is a ton of info on the B5 S4 forum about the Cayenne brake setup.

[JK35]

OK, the Cayenne stage whatever kittie-kit-kits are for B6's, right?
My thoughts were to just score some aluminum uprights off of a B6 A4. I found a set from a 2004 auto, and was thinking that I'd just swap my components over to essentially be a B6 front end, then the calipers bolt on, the badass rotors from JHM will work, I'd be all set, right?

I'm headed to the 4 forum to see what I can find, because everything I get into elsewhere falls short in the "factual data" department. I think it's a matter of being a swap that very few have actually done due to the uncertainty and un-commonality of the parts needed.
Totell you all the truth, I haven't even been able to get straight answers out of the outfits who are selling the Cayenne-Audi BBK packages, which I suppose I can appreciate considering that noone in their right mind wants to give out info they're not sure of especially when that info could create very pissed off customer when plans fall to pieces.

What I am reading here from you guys though... are that I will need 2001 alum. uprights from an S4, the 2001 axles, and the 2001 control arms. Actually, I just looked up the kit I bought from FCP Groton, and what I already have is the "S4 upgrade" control arm kit which already has the arms for RS4's... I'm going to give it a whirl with the arms I just installed last year, as they only have about 1700 miles on 'em!
(This has been a really long build)

How have you guys dealt with the bushings on the alum uprights?
I talked to an Audi parts dealer (ebay store based in Iowa) nice enough guy, but he wants 350/pr for god alum. uprights with good hubs/bearings. and he began to explain that he comes across problems with most of these "bushings" found on these uprights and that he's got a machinist making a batch of replacement parts that will be a permanent fix
(something about these "bushings" sually gettng destroyed upon disassembly -when you remove the control arm from the bottom???

any of this sound like anything that makes sense?
He's planning on offering these fabricated "bushing" replacements for $30/pr...

sound good?
or does it sound like someone is trying to make $
Ihaven't actually had an aluminum S4 upright in my hands to inspect / look over, so I really don't know.

I've been turning wrenches for a living for a few months now though, and most of the udis I come across are newer and they ALL have aluinum uprights. Seems like the cast iron stops after B5's, or am I mistaken?

[f15046]

As far as the control arms go- The "s4" upgrade that FCP-Groton advertises means stronger tie-rods or something like that. If you have steel uprights, your lower front control arms WILL NOT work in the aluminum uprights. The reason they don't work is the size of the tapered end that fits into the upright. The control arms tapered end used in the steel uprights are larger.

The aluminum uprights use a steel sleeve inside them, this is to keep the hole in the upright from rounding out and becoming enlarged. What happens, sometimes, when you remove the old control arm from the upright is the sleeve stays on the end of the control arm instead of staying in the upright. This can be a pain in the ass to get the steel sleeve off the old control arm.

Let me know if this guy makes these sleeves, I have an extra set of aluminum uprights that are missing the steel inserts. (PM me if you are interested in them, i'll sell them cheap)

Like I said the everything has been solved with this brake swap in the B5 S4 forum, just get the S4 suspension on your A4 and you are ready to go.

[onemoremile]

The Cayenne calipers can also work with stock A4 uprights with a simple adapter. Much more wheel clearance too.

[danphines]

The Cayenne calipers can also work with stock A4 uprights with a simple adapter. Much more wheel clearance too.

any links to said adapter?

[onemoremile]

search button is in the corner.

[$teady$upreme]

http://www.audizine.com/forum/showth...hlight=cayenne

[$teady$upreme]

http://www.audizine.com/forum/showth...hlight=cayenne

[sweets4style]

getting the aluminum uprights without the steel inserts is useless as you can not buy the inserts seperately making them essentially junk.

[Aragorn]

There are two sizes of outer CV/bearing, Easiest way to see the difference is to measure the size of the hub bolt. If its a 14mm internal Hex its a 75mm bearing and if its a 17mm internal hex its a 82mm bearing.

All S4 uprights and all B6 uprights use the 82mm bearing, so if you currently have a 75mm then you'll need to change the shafts. My 1.8T Quattro has 82mm front bearings, but my old 1.8T FWD had 75mm ones.

As above if you go alloy you'll need to change the lower front control arm. B6 uprights will also lower the car by approx 15mm, you can switch to B6 front spring platforms to counter this if you want. If you use steel S4 uprights you wont have to change the control arms.