Loving select-trac!

[ShadowsPapa]

The Selec-trac for the Rubicon is listed as "4:1 Rock-Trac Full Time 4WD System" on my window sticker.

Yes, they have added the option to Rock-trac of the full-time automatic system.
Still, it's different.
You can, and would have, Rock-trac on your Rubicon even if you didn't order it with that full time option.
All Gladiator Rubicons have Rock-trac, even before Selec-trac was even a thing on Gladiator.
But not all Gladiator Rubicons have the full time system.
Even if it does, it's different as it's a different transfer case ratio and technically, Rock-trac has locking differentials.

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[dcmdon]

So I guess the right way to say it is that Rock-Trac Full Time 4WD is the same as Selec-Trac.

The only exception being that the Rubicon's transfer case is 4:1 and everything else is 2.6:1 (I think that's the ratio) in low range.

So in 4H Auto, there is no difference between Selec-Trac and Rock-Track Full Time 4wd.

 

[ShadowsPapa]

So I guess the right way to say it is that Rock-Trac Full Time 4WD is the same as Selec-Trac.

............ in the fact they both have a full time auto mode.
Otherwise, still different transfer cases and the Rock-trac has lockers and the lower ratio 4L
It's closer, anyway, in that they both have that full time mode.

It gets crazy trying to follow the history of Jeep transfer cases since the 70s and 80s with all of the various versions of Selec-Trac, Rock-Trac, Quadra-Trac, Quadra-Trac II and so on....... ugh.
I have 4 transfer cases on my shelves and every danged one of them is different and stupid me didn't tag or label them when I got them.

 

[bd100]

For the manual transmission, I find the limited slip differential plus whatever traction control the computer maybe uses plus decent tires makes for very good grip on wet pavement.

 

[dcmdon]

For the manual transmission, I find the limited slip differential plus whatever traction control the computer maybe uses plus decent tires makes for very good grip on wet pavement.

It all depends on how and where you drive. When I got my Jeep I was on wet pavement and in the city. I needed to beat the opposing car for a left turn or I'd have to wait for like 30 cars to pass.

I had the wheel cut hard and when the light turned green gave it a bit of gas. The inside wheel unweighted and began to spin. The traction control intervened and killed the power. I was essentially dead in teh water for a second.

It didn't make much of a difference but it was a bit unnerving. In 4H Auto I can get on it as hard as I want in the city and no slippage and no traction control intervention.

I know its a narrow use case, but where I live there are. lot of steep hills with low speed turns onto these steep streets. Its nice to know the TCS isn't going to pull power at an inopportune moment.

This is obviously now why I got SelecTrac but it is part of the reason that I leave it engaged in the rain. The truck just drives better and is more forgiving if I get on it in low gears while turning.

 

[mojodcat]

I, like ShadowPapa had the "auto" mode on my old GMC Sierra.. only needed 4H or L once after 18 inches of snow... when I found a Mojave with SelectTrac that wasn't even off the train yet, I jumped on it..

 

[montechie]

Well, regardless of the mess the Jeep Marketing department has made of labels (naming things is hard), I'm loving my 4-auto on the JTR while still having the 4:1. It's a big reason I ditched my Taco.

Similar to others here have mentioned my area will get months of dry pavement+snow/ice on the highways. I've also had some heart stoppers hitting ice patches on shaded corners on 95% dry winter roads when in 2wd with other 4x4s. I'm also really looking forward to 4-auto in a winter town with icy round-a-bouts.

I haven't put it through the Montana ringer yet, but did tear around at the end of winter last year on wet ice with 4" of wet snow on top and it did awesome (combined with the Falken AT3W) as well as some late, wet blizzards. I'm also using it a bunch this summer when on curvy gravel roads, the shoulder is often very soft and it keeps good control dodging vehicles in the middle of the road.

 

[AstroZombie]

my v8 '00 grand had that it was really nice. If i caught it right it would chirp all 4 tires off the line. My '78 GranD WAGGY had quadra trac w/ low range option. That was fun too.

 

[Lunentucker]

It's the only thing I don't have that I wish I did have.

 

[NachoRuby]

For the manual transmission, I find the limited slip differential plus whatever traction control the computer maybe uses plus decent tires makes for very good grip on wet pavement.

It does, but I still wish we could get full-time with the manual. My jeep does fine in the winter just switching in and out of 4wd as needed, but I'd like full-time for the heavy slick rains. On Snow/ice I'm ok with part-time. But coming from a Subaru STI with the awesome AWD, I miss having it in the rain.

 

[chorky]

This almost makes me want to trade in my 22 and order a 23……. But part of me also wants to just park it for the winter and stay away from the deicer garbage.

 

[Pescatoral Pursuit]

it was the only option that didnt come with my Mojave that i wanted but had to settle. I had it on my 99 Dakota and it was great only come on when needed.

It's there now.

 

[ShadowsPapa]

In 4H Auto I can get on it as hard as I want in the city and no slippage and no traction control intervention.

Oh, man, if people knew how I've driven my Jeeps....... ugh, don't tell my wife.
Everything from Comanche to ZJ to WJ to whatever else........
IMO, driving a stick in winter is fairly different from driving an automatic, and an older automatic is different from most of the modern ones.
I learned winter driving on - sticks - that's all we had for the most part until Dad finally could afford a car with an automatic. All of my cars until my first Eagle were sticks. My trucks - some stricks, some automatics.
Anyway, I not only learned winter driving on sticks, I got tips from delivery truck drivers. Then when I worked in the shop after college - the wreckers and shop trucks all sticks and the boss was an expert at winter driving. Got more tips from him.
Then I got into automatics - sort of different, IMO. Not worse, not better, just different.
The Comanche wasn't really sure-footed on slick or snowy roads. It would get through but you had to watch it with the light ass-end and no full-time.
The Eagle -you couldn't get that thing stuck unless you high-centered it and talk about sure-footed.

IMO, rain slick roads are where they really shine. Our Grand Cherokees, all versions, were no problem in any rain, even when the low spots in the road filled with rain - you would feel like you hit a wall or something but it would go through if you hung on, and you'd not slip or slide.

 

[Labswine]

IMO, rain slick roads are where they really shine. Our Grand Cherokees, all versions, were no problem in any rain, even when the low spots in the road filled with rain - you would feel like you hit a wall or something but it would go through if you hung on, and you'd not slip or slide.

My GCs were so very sure footed in any weather. My '96 and '03 with the selec-trac were awesome and I thought they were the absolute best until...I had my '08 Overland (Hemi) with the QDII system. DAYUM that thing went through every and anything that was thrown at it. Even better when I lifted it 2" and had the Hankook Dynapro ATMs on it. It was nearly unstoppable. That QDII system TOTALLY ROCKED!!!!

 

[ecidiego]

So I guess the right way to say it is that Rock-Trac Full Time 4WD is the same as Selec-Trac.

The only exception being that the Rubicon's transfer case is 4:1 and everything else is 2.6:1 (I think that's the ratio) in low range.

So in 4H Auto, there is no difference between Selec-Trac and Rock-Track Full Time 4wd.

Part Time is so misleading. If the selector is there, it's Full Time. Lol. Auto is more Part Time.

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