LSD or No LSD?

[YBABRAT]

that is a good point - the stock JL had BFG Ultra Terrain’s which are very mild AT tire if memory serves.

For some reason my 2019 Rubicon was factory built with Falken Wild Peaks and owner kept using them with every tire change. The last set they had installed happens to be the M/T version.

I have a feeling even with LSD that Wrangler would wheel spin in a bad way when traction would break free. BLF won't go off course in a bad way.

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[Camaroboi13]

Find yourself a 24 Willys if you’re going to trade. At least that way you get gearing, LED lighting, infotainment, rear locker, and all the other goodies that you’ll probably never need.

 

[AdamG]

Yes. Taped up the connector, and then used my tazer to make the Jeep think there is no FAD. The FAD unit is sitting in a box in the shop.

The Mopar FAD removal thingy is essentially a plate with a fork attached that keeps the fork slid over connecting the two axle shafts together. It is a factory part.

Cool thanks. I have the plate kit, bought as a trail fix item just in case but never installed it. I’m a year and a half in since the regear and f/r TT install and still running the FAD, wondering if I should just do it or keep running it as is. I’d have to buy a Tazer too.

 

[ArmyRN]

Cool thanks. I have the plate kit, bought as a trail fix item just in case but never installed it. I’m a year and a half in since the regear and f/r TT install and still running the FAD, wondering if I should just do it or keep running it as is. I’d have to buy a Tazer too.

I believe the makers of the TT recommend a FAD removal. Some new Jeeps don't even have a FAD.

My recommendation: get a Tazer, do the FAD delete with the Tazer so the Jeep doesn't recognize it, then unplug the FAD and replace it with your Mopar plate. One less thing to worry about.

The Tazer is good for other things too.

 

[AdamG]

I believe the makers of the TT recommend a FAD removal. Some new Jeeps don't even have a FAD.

My recommendation: get a Tazer, do the FAD delete with the Tazer so the Jeep doesn't recognize it, the unplug the FAD and replace it with your Mopar plate. One less thing to worry about.

The Tazer is good for other things too.

Did you do the install? If so, easy? Any necessary steps/tips or just remove and replace?

 

[ArmyRN]

I had a shop do it. It is complicated. You have to pull axle shafts, and the decades of experience shop said the rear is actually more difficult than the front. Not something I would feel comfortable doing.

 

[TectonicDiscoveries]

Had the Limited Slip but it failed and started making a knocking noise. There is an extensive thread on here about 'knocking in rear with dana 44' that I was following when trying to track down the noise. The more annoying part about trying to get it fixed was getting the Jeep dealer to even admit it was a failing part. They took it apart, said it was fine and the knocking noise was my 285 tires...

Went to an independent mechanic who installed an OX locker in the rear and magically my noise went away (sarcasm in that it absolutely was the limit slip that failed.) The mechanic even called me up and asked who was in this diff before him because the bearing sounded like it was packed with sand from the debris of the failing clutch packs.

This isn't like the aluminum steering box which got replaced with a different part. If you somehow get them to admit the LSD failed itll just be replaced with the same faulty part to blow out 20-50K miles later.

 

[zouch]

agreed.
that's what i've done with my last couple of J**ps, and they work perfectly, without fault.

the clutch-pack style Trac-Lok will inevitably wear out its clutches; my first one was toast in under 2 years.

I would install a Truetrac in the rear axle (which is what I did).

 

[AdamG]

I had a shop do it. It is complicated. You have to pull axle shafts, and the decades of experience shop said the rear is actually more difficult than the front. Not something I would feel comfortable doing.

I meant the FAD delete plate, did you replace or did the shop do it all for you?

 

[ArmyRN]

I meant the FAD delete plate, did you replace or did the shop do it all for you?

I supplied the Mopar FAD delete plate to the shop. They had it apart and the FAD off when they were pulling the axle shafts to install the TT, so when buttoning it all up they installed the FAD plate in place of the FAD unit.

It is easy to do. I did a CAD delete on my Dodge truck years ago - same principle. Pull all the FAD stuff off after unplugging it. Slide the collar over so it connects both axle shafts. Put the plate on so that the fork goes inside the groove on the collar. Don't forget the gasket. Install the four bolts and snugg it down. Pulling the passenger-side front tire might make it easier to maneuver under the Jeep.

I don't like or trust FADs or CADs. My TJ doesn't have them. My 46 and 56 Willys did not have them. My 98 ZJ didn't have it. Why they keep coming back like a bad penny I don't know. When I engage the front axle, I want 4WD now, not to have to wait for an electric or vacuum actuated gizmo to slide a fork attached to a bar connected to a collar to slide over and connect the ends of two axle shafts.

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