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Difference between AU1 and AU2/3 rear brakes. 

 

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 Post subject: Difference between AU1 and AU2/3 rear brakes.
Posted: Tue Jun 15, 2010 4:23 pm 
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Wanting to fit a AU diff to my EF XR6, I can get a complete AU1 ABS diff for $250 is there any advantage in fitting a AU2/3 diff over the AU1 diff.
There must be some differences because the rotors and barke pads are listed with different part numbers, just dont know if there is a performance advantage to be had. Cheers.

 

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 Post subject: Re: Difference between AU1 and AU2/3 rear brakes.
Posted: Tue Jun 15, 2010 4:32 pm 
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This isn't very detailed, but the AUII and III have bigger and better brakes.

I loved the brakes on my AUII, go for it :)

Although if the brakes on your EFs front end are stock it may feel a bit funny.

 

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 Post subject: Re: Difference between AU1 and AU2/3 rear brakes.
Posted: Tue Jun 15, 2010 4:44 pm 
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From what I can find out the AU2/3 got bigger discs and two spot calipers on the front, but I cant find out if the back recieved a significant upgrade.

 

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4.0L EF Fairmont Station Wagon. EL GT Snorkel. K&N Pod in air box. 3" Intake piping.
Home port job. 1636 Wade cam. Wildcat Extractors, 2 1/2" cat and exhaust.
2200/2400rpm Dominator More Stall. Stage two mechanical shift kit. 3.73 4 pinion LSD. 15.078 @ 92mph.

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 Post subject: Re: Difference between AU1 and AU2/3 rear brakes.
Posted: Tue Jun 15, 2010 10:12 pm 
Getting Side Ways
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Ride: EF Fairmont Station Wagon.

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WA, Australia

I have found some information on a AU site saying that all AU diffs have 287mm discs and single piston callipers, so I wouldn't think there would be that much difference.

 

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4.0L EF Fairmont Station Wagon. EL GT Snorkel. K&N Pod in air box. 3" Intake piping.
Home port job. 1636 Wade cam. Wildcat Extractors, 2 1/2" cat and exhaust.
2200/2400rpm Dominator More Stall. Stage two mechanical shift kit. 3.73 4 pinion LSD. 15.078 @ 92mph.

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 Post subject: Re: Difference between AU1 and AU2/3 rear brakes.
Posted: Tue Jun 15, 2010 10:30 pm 
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Different caliper and a thicker rotor

 

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 Post subject: Re: Difference between AU1 and AU2/3 rear brakes.
Posted: Wed Jun 16, 2010 12:18 am 
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Ride: EF Fairmont Station Wagon.

Power: 150 rwkw

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WA, Australia

67RCE wrote:
Different caliper and a thicker rotor


Thanks, do you know if they are interchangable between AU1, AU2/3 or if there was a significant performance increase with the AU2/3. If I am going to the trouble of swapping the diff I might as well make sure its the best option, :) .

 

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4.0L EF Fairmont Station Wagon. EL GT Snorkel. K&N Pod in air box. 3" Intake piping.
Home port job. 1636 Wade cam. Wildcat Extractors, 2 1/2" cat and exhaust.
2200/2400rpm Dominator More Stall. Stage two mechanical shift kit. 3.73 4 pinion LSD. 15.078 @ 92mph.

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 Post subject: Re: Difference between AU1 and AU2/3 rear brakes.
Posted: Wed Jun 16, 2010 3:39 am 
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AU has a 12mm thick disc and AUII/III has a 16mm thick disc......rears that is....different calipers too.

 

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