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3 Channel 12 Bolt into a 4 Channel Car

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Old 02-14-2007, 12:17 PM
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Default 3 Channel 12 Bolt into a 4 Channel Car

Hi, I just bought a 3 Channel 12 bolt, but my car is a 4 Channel with ABS and TCS. Will this plug right in, but with no TCS?? Input PLEASE!!
Old 02-14-2007, 03:00 PM
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Going through the same issue right now.

I bought a Moser 12 bolt for my 1994 z28, it had no ABS so no reluctor ring in the pumpkin, even no hole for it.

Got out of the LT1 car, kept the rear.

Bought a 2002 T/A with 4 channel ABS w/TCS

I want to keep everything. I contacted Moser, they have to machine the axles for the ABS exciter rings which go on the ends. They charge 100 for the machining and 75 for new rings. I am going to have them do it all.

Also having the bearings un pressed before hand helps, I had LT1 brake hardware on it so it def needed to come off before hand.

Otherwise its pre basic bolt in. There was an issue with the E-brake in relation to having it bolt into the rear. I have LCA relocation brackets installed I was told by quite a few people that it has to be cut and re-welded.
Old 02-14-2007, 03:15 PM
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I don't care if the TCS works cause I never use it. Will the ABS work??
Old 02-14-2007, 03:30 PM
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the parking brake works if you use the right type parking brake cables. I switched my 96 to 2000 and vise versa and swapping the cables worked perfectly. one set is longer and with shorter tubes then the other.
Old 02-14-2007, 03:34 PM
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so this will work fine, ABS will work, Just no TCS????
Old 02-14-2007, 03:41 PM
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I still haven't figured out what i will do with my abs. I'm leaning on not even keeping my abs. either they both work or they both don't.
Old 02-14-2007, 03:44 PM
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I just don't know if the magnetic sensor work off of a standard voltage. If that voltage is the the same in both 3 and 4 channel you might be able to wire your existing sensors
Old 02-14-2007, 03:47 PM
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has anyone done this??
Old 02-15-2007, 06:16 AM
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Havent had a chance to post. No the ABS with out the exciter rings will not work. You need to have them on there. If you for go the rings its highly recommended to removed the ABS block and put a proportioning valve in there instead.

TCS is just a benefit of having the ABS in place, if there rings are not there you get neither.
Old 02-15-2007, 09:16 AM
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So can I just take the rings off of the axles in my 10 bolt, and put them on the Moser Axles in the 12 bolt??
Old 02-15-2007, 09:43 AM
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Originally Posted by 2000LS1TA
So can I just take the rings off of the axles in my 10 bolt, and put them on the Moser Axles in the 12 bolt??


Originally Posted by BlackScreaminMachine
Going through the same issue right now.

I bought a Moser 12 bolt for my 1994 z28, it had no ABS so no reluctor ring in the pumpkin, even no hole for it.

Got out of the LT1 car, kept the rear.

Bought a 2002 T/A with 4 channel ABS w/TCS

I want to keep everything. I contacted Moser, they have to machine the axles for the ABS exciter rings which go on the ends. They charge 100 for the machining and 75 for new rings. I am going to have them do it all
No you will have to send the axles to Moser, Strange or someone to have the rigs installed and then get new break backing plates for a 4 channel setup. Unless you can reuse your 10 bolt plates. Strange could not use my stock ones but I have an odd setup ABS TCS on a 96 LT1.

Hope this helps!

Ross
Old 02-15-2007, 09:51 AM
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Originally Posted by Rat Raceway
No you will have to send the axles to Moser, Strange or someone to have the rigs installed and then get new break backing plates for a 4 channel setup. Unless you can reuse your 10 bolt plates. Strange could not use my stock ones but I have an odd setup ABS TCS on a 96 LT1.

Hope this helps!

Ross
Umm thats what I said, Axles are going to Moser to be machine, they will install the rings. Once I get them back I'm using my old backing plates and a local shop is pressing on the bearing.
Old 02-15-2007, 10:01 AM
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Originally Posted by BlackScreaminMachine
Umm thats what I said, Axles are going to Moser to be machine, they will install the rings. Once I get them back I'm using my old backing plates and a local shop is pressing on the bearing.

Thats why I quoted you.

But sometimes the stock plates dont work... Well they didnt on mine.
Old 02-15-2007, 11:57 AM
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Originally Posted by Rat Raceway
Thats why I quoted you.

But sometimes the stock plates dont work... Well they didnt on mine.
Ok I see, I think that had to do with you having LT1 backing plates. On the 94z28, they swapped over, all I needed to use was a 1/4" shim supplied. With the LS1 brake setup its not needed. I just did a LS1 moser swap on a 3 channel, no issues.
Old 02-15-2007, 04:45 PM
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This seems like to much of a PITA, could I just put it in there without the ABS and ****?? Would this make the ABS light go on in the dash?? Thanks guys
Old 02-15-2007, 07:42 PM
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Also since the 12 bolt has moser axles in it, why would the need to be machined?? Couldn't I just pick up the reluctor rings and press them on myself??? Thanks again
Old 02-15-2007, 09:45 PM
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Man I wish people would read the stickies.

You just need to put the reluctor rings on the axles. You can use the ones from your 10 bolt. If you install it without doing that, yes it is going to trip a dash light. If you install this without your reluctor rings, you will not have abs, you will not have traction control. Think about it. If you install a rear and plug in no connectors to it, what the heck does the car have to go by if a wheel is slipping or not?
Old 02-16-2007, 12:40 PM
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they will work if you get them machined down. i had to on my 96
Old 02-16-2007, 03:49 PM
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I read the stickies! I need to get the moser axles machined down to accept the rings?? Also could i take the rings off of my stock 10 bolt axles and put them on the 12 bolt axles without maching??? Is the machining 100% necessary?? Thanks, Ryan
Old 02-16-2007, 10:22 PM
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No. I took the rings directly from my 10 bolt axles and put them on my 12 bolt.


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