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What are the consequences of running with out the rear ABS?

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Old 07-03-2009, 06:03 PM
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What are the consequences of running with out the rear ABS?

I've got a bit of a predicament. Let's hear your 2 cents.

I picked up two 4.56 diffs at Pick and Pull.
One has the ABS sensor hole, the other does not.

I would like to keep ABS in my truck (better load handling, what not). Hence why I bought the second 4.56 diff.
But the diff with the ABS hole has a chipped ring gear tooth (GRR).





What are the consequences of running with out the rear ABS?
Or should I just throw the ABS diff (w/ chipped tooth) in and see what happens?

Last edited by waskillywabbit; 07-03-2009 at 06:49 PM. Reason: Useful title
Old 07-03-2009, 07:42 PM
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Why not switch the gears between the diffs?
Old 07-03-2009, 07:48 PM
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Then I would have to set up the diff's.
Set a diff = money
Me = Cheap.
Old 07-03-2009, 08:03 PM
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You just take everything out of one diff (all the shims, etc) and put it in the other. The backlash will need to be set, but you should be able to negotiate with a shop to do that and check the pattern for pretty cheap.
Old 07-03-2009, 08:25 PM
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no abs just means it drives like a old truck and you can lock the rear end up not having abs never bothered me but it's really your call
Old 07-04-2009, 12:58 AM
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I have not had it in my Runner for two years. It was a pretty useless system to start with. Just leave the sensor plugged in and zip tie up to your frame somewhere. If you unplug the sensor it'll throw the light on your dash. I plugged my ABS hole with a freeze plug and my sensor rides upside down bolted to the diff in the original hole
Old 07-04-2009, 06:55 AM
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Originally Posted by Stuwy123
Then I would have to set up the diff's.
Set a diff = money
Me = Cheap.
You should be able to swap the whole third. Right ?
Then the gears wouldn't have to be swapped and set up. However you still might lose your ABS functionality. My ABS sensor hasn't functioned in about 5yrs I don't miss it.
Old 07-04-2009, 11:19 AM
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Even with the ABS light on it would just be letting you know that the control valve is reverting to normal non anti-lock mode by bypassing all the electronically controlled valves and letting hydraulic pressure go straight from the master cylider to the wheels.
Old 07-04-2009, 11:21 AM
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Yes the thirds swap right in.

Just to clear things up:
- Currently running 4.10's
- Have a Non-abs 4.56
- Have an ABS 4.56. Chipped / cracked tooth (pictured above).

What should I do?
Options:
- Leave as is (4.10's).
- Put in Non-ABS 4.56.
- Put in ABS 4.56 w/ busted tooth.
Old 07-04-2009, 11:27 AM
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Originally Posted by Tragic Drive
You should be able to swap the whole third. Right ?
Then the gears wouldn't have to be swapped and set up. However you still might lose your ABS functionality. My ABS sensor hasn't functioned in about 5yrs I don't miss it.
so do you have that "rear anti-lock" light in the left side of the dash? mine comes on and off as it pleases..... sorry to hijack stuwy, but to clear up my confusion, when the light is on it means the ABS is not functioning right?
Old 07-04-2009, 04:27 PM
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Originally Posted by Stuwy123
Yes the thirds swap right in.
What should I do?
Options:
- Leave as is (4.10's).
- Put in Non-ABS 4.56.
- Put in ABS 4.56 w/ busted tooth.
I would try the Non ABS third with the 4.56's in em.
I would also not use the chipped gear except in a get home situation. I'm not saying the gears would break or slip but ya never know.

Originally Posted by yotasavg
so do you have that "rear anti-lock" light in the left side of the dash? mine comes on and off as it pleases..... sorry to hijack stuwy, but to clear up my confusion, when the light is on it means the ABS is not functioning right?
Yeah the check ABS light has been on for years. I just taped a business card over the light and don't even notice it. I searched for the issue a long time ago and was told to clean the rear sensor off. I just haven't done it yet, Maybe this week I'll do it since I'm installing my ARB locker.
Old 07-04-2009, 04:54 PM
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Originally Posted by yotasavg
so do you have that "rear anti-lock" light in the left side of the dash? mine comes on and off as it pleases..... sorry to hijack stuwy, but to clear up my confusion, when the light is on it means the ABS is not functioning right?
Thats correct. ABS light on=ABS not on.
It does this because you could go braking out of control if only a part of your ABS system was working properly. Instead it gets bypassed entirely so that you will be able to stop normally (manually). And yes you can then lock up the brakes.
Old 07-04-2009, 06:49 PM
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I unhooked mine three years ago on my dd. No problems what so ever just be careful when your driving in rain. Much better when going down a dirt or gravel hill
Old 07-05-2009, 10:29 PM
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Originally Posted by desertcamper67
Thats correct. ABS light on=ABS not on.
It does this because you could go braking out of control if only a part of your ABS system was working properly. Instead it gets bypassed entirely so that you will be able to stop normally (manually). And yes you can then lock up the brakes.
Ok nice, well that's what I thought and I really don't have a problem with it. Thanks!

Originally Posted by SouthGeorgiaRunner
I unhooked mine three years ago on my dd. No problems what so ever just be careful when your driving in rain. Much better when going down a dirt or gravel hill
Word to that. I'm not a fan of ABS on dirt and as far as the rain, well my 3.0 barely goes fast enough to get dangerous anymore....
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