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ISO: front and rear calipers and brackets

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 Post subject: ISO: front and rear calipers and brackets
PostPosted: Wed Dec 23, 2020 1:31 pm 
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Doing a 5 bolt swap and have urs front hubs at all 4 corners.

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Wed Dec 23, 2020 8:35 pm 
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RennenMsports wrote:
Doing a 5 bolt swap and have urs front hubs at all 4 corners.


on what car ?

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Thu Dec 24, 2020 7:19 am 
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Oops. 91’ 80q. With a 6mm spacer
Attachment:
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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Thu Dec 24, 2020 9:07 am 
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im not sure if i understand how did you install urs4/6 hub on the rear of a B3 80q

Isnt those are 82mm instead of the 75?

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Thu Dec 24, 2020 9:28 am 
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varia wrote:
im not sure if i understand how did you install urs4/6 hub on the rear of a B3 80q

Isnt those are 82mm instead of the 75?

I must use wheel bearing 33412220987 from a bmw e36. And machine the hubs to roughly 42.2 mm according to the guy I got the shafts from

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Thu Dec 24, 2020 10:54 am 
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I would like to use urs front and rear brakes but either way they have to fit behind these wheels. The guy said something about using c5 s6 269mm and/or c5 A6 4.2l 269mm rotors but I’m not sure exactly.
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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Thu Dec 24, 2020 10:56 am 
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ahh ok, good luck with it.

I have hard time understanding why ppl over-complicating a simple thing, like 5 lug conversion with off-shelf parts

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Thu Dec 24, 2020 1:08 pm 
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Ok thanx. Over complicating things keeps my brain entertained. Cars bring me peace of mind and the ability to stay out of trouble. I also tend to over engineer things. I’m sorry if I frustrate you or anything else for that matter. You help me a lot with information to help build my beloved Audi and I really appreciate you a lot!

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Thu Dec 24, 2020 4:40 pm 
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my recipe on the rear was for this 90, its has a two pieces suspension, it was a 20V car originally:
B5 A4q rear hub (New bearing, 75mm)
B5 S4 rear disk
B5 S4 rear brake caliper bracket
D2 S8 rear brake caliper, cos its aluminum (urs4/6, v8 rear can be used as well)
(I even used a front forged control arm on the rear)

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IMG_20200202_153107.jpg
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If your 80 had a 1 piece upright, i would upgrade that first.

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Thu Dec 24, 2020 7:31 pm 
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It actually came with 2 piece uprights and I just got 2 piece 82mm knuckles. Will the B5 A4q rear hub accept a front B5 S4 outer cv joint?

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Thu Dec 24, 2020 9:30 pm 
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" I just got 2 piece 82mm knuckles"
for the front. Rear is 75mm

or that where you want to use that bmw bearing, spacer combo?

"Will the B5 A4q rear hub accept a front B5 S4 outer cv joint?"
nope, but B3 80/90/cq/S2 cv/axle will fit

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Thu Dec 24, 2020 10:03 pm 
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The 75mm rear gets the BMW bearing with a 6mm spacer and a urs front hub machined down to about 42.2mm
Attachment:
DE0D4C90-A682-4FCF-BB14-053E34163608.png
DE0D4C90-A682-4FCF-BB14-053E34163608.png [ 747.66 KiB | Viewed 185 times ]

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Thu Dec 24, 2020 11:20 pm 
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RennenMsports wrote:
The 75mm rear gets the BMW bearing with a 6mm spacer and a urs front hub machined down to about 42.2mm
Attachment:
DE0D4C90-A682-4FCF-BB14-053E34163608.png


got it.

now the interesting part will be to find a caliper bracket, and disk that will fit because the diff. hubs (4-5mm)

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Fri Dec 25, 2020 7:46 am 
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He stated If I use urs6 rear brakes I can use a c5 s6/c5 A6 4.2l 269mm rotor
Attachment:
C9720FB7-C7C6-4BA1-A54B-B023D7E07420.png
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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Fri Dec 25, 2020 9:02 am 
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rotor maybe, but still need matching caliper and caliper bracket to line up everything.
not many caliper has the good orientation to pull the e-brake cable

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Fri Dec 25, 2020 9:48 am 
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Will a rear urs caliper bracket bolt onto the rear of a B3? Merry Christmas by the way!

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Fri Dec 25, 2020 10:04 am 
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RennenMsports wrote:
Will a rear urs caliper bracket bolt onto the rear of a B3? Merry Christmas by the way!


Alone it might, but the offset of the ur4 hub and/or disk will make it hard to use


Merry Christmas to you too.

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Sat Dec 26, 2020 3:41 pm 
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varia wrote:
RennenMsports wrote:
Will a rear urs caliper bracket bolt onto the rear of a B3? Merry Christmas by the way!


Alone it might, but the offset of the ur4 hub and/or disk will make it hard to use


Merry Christmas to you too.

Ok. Thank u for your input! I appreciate it!

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 Post subject: Re: ISO: front and rear calipers and brackets
PostPosted: Wed Dec 30, 2020 6:42 pm 
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I have a set of URS6 front and rear drilled rotors and a set of rear calipers available.


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