D2 traction control VS CDL being locked

[brushogger]

I recently read, under new presidential order, you will be required to have a CDL to drive a vehicle with a CDL and TC unless equipped with ACE. Any BCU or ECU alterations must be approved by the EPA. Any CDL equipped vehicle must also have a MAF, TPS, and IAC along with TC. Ouch! I think I just got hit in the eye by a flying acronym.


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[BirchHill]

Happy hour? watch out we will be protected from it by executive order soon.

 

[11b4v]

finally installed

Finally installed mine yesterday, took about 5 hours total including a run to Ace Hardware for an M8 nylock and 3/16 rivits. other than cramming the cables in place, not difficult at all. Got mine from a salvage yard $100 shipped.

Did my test drive afterward on the 4wd trail/mud pit behind the neighborhood. With lots of recent rain here in the SE, everything was extra muddy.

The area being relatively flat, I didnt think I would be able to test/utilize the new CDL until I was heading home, I got hemmped up in a 45 degree angle across a trail with deep, muddy tracks.

My LR was in the left track, my LF was in the right track with the TC whirring away, RR spinning away and the truck going nowhere. Engaged the CDL and BAM! I was moving!

Way cool, and wished I had video'd.

Im a believer.

 

[BirchHill]

Did you use just the locking snout or replace the whole transfer case? If you just did the snout was it from a D1 or 2?

 

[stonepa]

Tc is only as good as your brake system. Cheap pads and poorly lubed caliper slides gets you the kind of performance shown in the video.

Here is a video of a properly working tc system vs a cdl equiped jeep. https://www.youtube.com/watch?v=jLBg4-dI05A

I would agree. I have made the CDL conversion on my 2000 D2 but the traction control definitely works as well in cross axle situations or deep mud. The video doesn't look at all how my truck works with the CDL not engaged. Even with the CDL off my truck will make it through most everything. I added the CDL conversion to save the wear and tear on my brakes due to the traction control. With a lot of use the traction control really heats things up and the smell can be a bit powerful, with the cooked swamp mud and all.

 

[stonepa]

This is one of the better videos I have found of TC ONLY performance. Its in french but, it translates to without CDL
http://www.youtube.com/watch?v=nc1kzHhtvmM

That's more my experience, especially around the 1:35 mark. 90% of the time the TC is enough. The remaining 10% is why I did the CDL mod, and added the front and rear lockers. Good times!

 

[ZG]

Well TC only gets you so far, then you shoot a hole in your front diff! That's what happened to me last night, damn. Bill at GBR explained it pretty well to me, explaining that a LR diff has the ability to withstand about 40 minutes straight of TC working. He talked me out of air lockers and into an LSD in the front and rear. He thinks TC is great and CDL is a useful addition, and that one of the benefits of CDL is that TC comes on less and saves wear on your diffs. He has two d2s, both with TT LSDs, not lockers. If Bill believes CDL, TC, and LSDs are good enough, I trust him. The guy knows his stuff.



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[Antichrist]

The (shallow) depth of analysis here is frustrating.

Birch, can you comment on the durability of the LT230 when subjected to severe off road duty without the CDL locked?

Just to be clear, that's the center diff from my wife's '97 and had nothing to do with off-roading with CDL not engaged.

 

[11b4v]

reply to BirchHill

BirchHill,

I have an 00 DII., all I had to do was add the CDL shifter/diff lock and cable, etc. my TC was already equiped.

RNPhoto, I might be more inclined to use the CDL with those words from Bill / GBR.

 

[David Harris]

BirchHill,

I have an 00 DII., all I had to do was add the CDL shifter/diff lock and cable, etc. my TC was already equiped.

RNPhoto, I might be more inclined to use the CDL with those words from Bill / GBR.

I think it should be locked anytime you're driving off of pavement, i.e. on dirt roads as well. Much better control on loose surfaces with it locked.

 

[11b4v]

this weekend

It just so happens that Im spending an extended weekend off-road in the North Georgia mountains with three particular old, tough jeep trails in mind.

 

[ZG]

It just so happens that I'm definitely jealous, there's not enough off road areas in Vermont

 

[stonepa]

.

Well TC only gets you so far, then you shoot a hole in your front diff! That's what happened to me last night, damn. Bill at GBR explained it pretty well to me, explaining that a LR diff has the ability to withstand about 40 minutes straight of TC working. He talked me out of air lockers and into an LSD in the front and rear. He thinks TC is great and CDL is a useful addition, and that one of the benefits of CDL is that TC comes on less and saves wear on your diffs. He has two d2s, both with TT LSDs, not lockers. If Bill believes CDL, TC, and LSDs are good enough, I trust him. The guy knows his stuff.


Your truck looks a lot like my 2000. View attachment 142356View attachment 142357

 

[ZG]

Well TC only gets you so far, then you shoot a hole in your front diff! That's what happened to me last night, damn. Bill at GBR explained it pretty well to me, explaining that a LR diff has the ability to withstand about 40 minutes straight of TC working. He talked me out of air lockers and into an LSD in the front and rear. He thinks TC is great and CDL is a useful addition, and that one of the benefits of CDL is that TC comes on less and saves wear on your diffs. He has two d2s, both with TT LSDs, not lockers. If Bill believes CDL, TC, and LSDs are good enough, I trust him. The guy knows his stuff.


Your truck looks a lot like my 2000. View attachment 142356View attachment 142357

Can't see the attachments, maybe they didn't upload correctly?

 

[stonepa]

Hopefully the upload works this time. For some reason you had to click on the attachment to get them to so in the previous post.