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Old 23-04-2007, 07:09 PM   #1
The Monty
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Default Diffs

Quick question, after a quick answer. Will an EA diff fit up to an AU?. If not, what LSD's are available for the AU, and what other models diffs are compatilble.
Thanks guys. :sm_headba

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Old 23-04-2007, 08:23 PM   #2
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only falcon diffs fit in falcons.. they are so different to other sort of cars. falcon diffs pull out from the rear end of the car, the back plate comes off and the center will pop out. commodor diffs and most others such as a 9" pop out from the tail shaft side.

lsd available for the au's are an au 3.45 LSD from an xr6 or 8.
and i am 90% certain that the e series diffs fit into the au
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Old 23-04-2007, 08:27 PM   #3
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EA diff centres do not fit AU's. The EA was 25 spline and the AU is 28 spline. Any diff centre from EB onwards will fit an AU along with a few other diff centres like the Nissan Pintara (4.11) and Skylines.

As for LSD, that can be fitted on any AU Diff of any ratio if you want. Ford only really fitted them to the 3.45 ratio (and possibly the 3.23 on the Fairmonts) however it can be fitted to any size diff centre.
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Old 23-04-2007, 09:14 PM   #4
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Quote:
Originally Posted by Casper
EA diff centres do not fit AU's. The EA was 25 spline and the AU is 28 spline. Any diff centre from EB onwards will fit an AU along with a few other diff centres like the Nissan Pintara (4.11) and Skylines.

As for LSD, that can be fitted on any AU Diff of any ratio if you want. Ford only really fitted them to the 3.45 ratio (and possibly the 3.23 on the Fairmonts) however it can be fitted to any size diff centre.
Damn, damn, damn! Don't tell me that E series centres fit in AU's! I just flogged off my EL 3.45 LSD diff assuming I couldn't swap the centres over!
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Old 23-04-2007, 09:17 PM   #5
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Quote:
Originally Posted by private9
Damn, damn, damn! Don't tell me that E series centres fit in AU's! I just flogged off my EL 3.45 LSD diff assuming I couldn't swap the centres over!
meh, 3.45 is so "stock" : Go for a 3.9 or 4.11 set, so much more fun
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Old 23-04-2007, 09:22 PM   #6
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the later e series centres will fit but not the housing or axles the au has a different offset
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Old 23-04-2007, 09:30 PM   #7
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Default Lsd

A VL commodore diff centre 3.45 will drop straight in. You will need an LSD when the turbo is fitted though. I picked up a good AU LSD for $415. . The ratio is still not good enough though same as a Fairmont. Still better than a 3.08 though. Be patient and wait for an AU diff to come up.
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Old 24-04-2007, 03:28 AM   #8
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Yeah Im deffinately getting an LSD, but as its a Fairmont, and Ill be going turbo, Ill stick with the 3.22's. Thanks guys.
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Old 24-04-2007, 08:56 AM   #9
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Quote:
Originally Posted by Baboon_AU
only falcon diffs fit in falcons.. they are so different to other sort of cars. falcon diffs pull out from the rear end of the car, the back plate comes off and the center will pop out. commodor diffs and most others such as a 9" pop out from the tail shaft side.

lsd available for the au's are an au 3.45 LSD from an xr6 or 8.
and i am 90% certain that the e series diffs fit into the au
All commodore diffs I've removed apear the same as the falcons. I'm not syaing they fit but they are removed from the back of the diff
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Old 24-04-2007, 08:14 PM   #10
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So will a LSD out of a AU 1 one tonner fit into a AU2
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Old 24-04-2007, 08:18 PM   #11
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Quote:
Originally Posted by Casper
meh, 3.45 is so "stock" : Go for a 3.9 or 4.11 set, so much more fun
What ratio have you got in yours mate?
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Old 24-04-2007, 10:07 PM   #12
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Quote:
Originally Posted by nc006
So will a LSD out of a AU 1 one tonner fit into a AU2
yes centre will fit
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Old 25-04-2007, 03:23 PM   #13
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Quote:
Originally Posted by Baboon_AU
only falcon diffs fit in falcons.. they are so different to other sort of cars. falcon diffs pull out from the rear end of the car, the back plate comes off and the center will pop out. commodor diffs and most others such as a 9" pop out from the tail shaft side.

what drugs are you smoking?


commodore diffs with BW 8 3/4" diffs are the same as falcons ...
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Old 25-04-2007, 03:32 PM   #14
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Quote:
Originally Posted by private9
What ratio have you got in yours mate?
4.11's
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