Why are these rearends different?
08-23-2012, 04:49 PM
#1
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Why are these rearends different? My friends has a 2001 trans am A4 with 4 channel rear. He bought a rear from another friend that suppose to be from an M6 4 channel car. One rear end has gears on the end of the axle but the other one don't. What has happened here?
08-23-2012, 05:58 PM
#4
A 4 channel(ABS & TC) has the sensors/reluctors at the axle ends,a 3 channel(ABS only) has one sensor(on top of rearend housing) and reluctor(mounted on the carrier). The pic of the axle without the reluctor looks like a 4 channel axle with the reluctor ring removed.
08-23-2012, 07:04 PM
#6
Why not just swap the axles?
I recall you have to remove the reluctor rings to remove or add the backing plates.
4 channel is abs and traction control - and why a sensor has to be at each wheel.
I recall you have to remove the reluctor rings to remove or add the backing plates.
4 channel is abs and traction control - and why a sensor has to be at each wheel.
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08-24-2012, 08:30 AM
#9
Well, then just swap the reluctor ring on just one axle. Make sure you have the backing plate on first only to find out you had a shop press it on and then have to remove it and press it on again because you need the backing plate.
The ring is pressed on, so you will have to clean up the rust on the axle that has a reluctor ring missing (removed).
Are the axles without reluctor rings from a three channel rearend by any chance? If so it's probably a reason the rings were not installed because they just complicate the install because of the backing plates. No response required - just curious.
Or it's possible someone needed reluctor rings for a Moser or other brand rear end. In most cases, Moser,Strange, and others require you to use your own backing plates and reluctor rings when replacing your rear end and if it is a 4 channel.
The ring is pressed on, so you will have to clean up the rust on the axle that has a reluctor ring missing (removed).
Are the axles without reluctor rings from a three channel rearend by any chance? If so it's probably a reason the rings were not installed because they just complicate the install because of the backing plates. No response required - just curious.
Or it's possible someone needed reluctor rings for a Moser or other brand rear end. In most cases, Moser,Strange, and others require you to use your own backing plates and reluctor rings when replacing your rear end and if it is a 4 channel.
Last edited by dlandsvZ28; 08-24-2012 at 08:36 AM.
08-24-2012, 08:54 AM
#10
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Now its make sense. The car the axles were swapped from upgraded to a 12 bolt rear so guess they were used on that rear. Thanks for all the help guys and clearing this up.
08-24-2012, 11:14 AM
#12
The backing plates do or don't dependent upon if the doner rearend is actually a 4 channel. The four channel backing plate will have a sensor plug whereas the three channel will not.
As for the order of how the backing plates are installed - my bad - I was thinking about my 12 bolt Moser and the order of installation of the reluctor ring, backing plates, and then the axle bearing where order of installation is important when you press the reluctor ring and axle bearing on.
For example, Moser doesn't ship their rearend with the axles installed or bearing installed. Reason why is because you have to install the backing plates and abs rings first - then the bearings - if it doesn't have c-clips.
I think Strange has you send your backing plates and abs rings for exactly the same reason. At least that was the way it was when I thinking about getting a Strange rearend instead of the Moser I eventually got.
As you can see in this pic of my 10 bolt - the abs rings (a four channel rear end) are outside of the backing plates so order of installation is not critical. Bishop - your are correct.
Again - sorry.
http://www.flickr.com/photos/1835930...7630765750292/
