New wet pavement handling issues?...

[ShadowsPapa]

Just out of curiosity, do you have a limited slip on yours?

Those of us who have (or will be getting) Rubicons or Mojaves are required to drive around on the street with an open diff. Whereas the rest of you have a limited slip that is useful on the street in these kinds of situations.

Of course SelectTrac is probably better than a limited slip, but most people don't seem to be getting SelecTrac.

Yes I have "limited slip".

I didn't realize SelecTrac precluded getting the limited slip differential. (but frankly, if you have that auto-4 mode LSD wouldn't really have much impact or be needed)

My Silverado had both limited slip AND their version of "SelecTrac" - an automatic mode in the transfer case.

I put limited slip under my 73 because frankly, as one guy put it - "that's too much horse power for that car with the light rear". The car will never see winter or slick roads so there was no other real motivation (that, plus a guy delivered the differential and 4 springs for the car to my shop door for 350 bucks, a deal I couldn't refuse or pass up)

My SX4 has open differentials - and frankly, I can't see the need for it under that car - if conditions warrant, I put it in 4 wheel drive and move along.
Since restoration, though, that car will also never see salt, snow and ice. It gets parked at the first sign of slime/brine on bridges. But on WET roads, it's fantastic!

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[npgeorgeuw]

Just out of curiosity, do you have a limited slip on yours?

Those of us who have (or will be getting) Rubicons or Mojaves are required to drive around on the street with an open diff. Whereas the rest of you have a limited slip that is useful on the street in these kinds of situations.

Of course SelectTrac is probably better than a limited slip, but most people don't seem to be getting SelecTrac.

Mine has both SelecTrac and a limited slip so the rear-end slippage definitely caught me by surprise as it was new but also I bought the car in February when the pavement had been wet and clean for months. It's consistent with off-road manner changes so something's definitely up, now it's off to a 4WD shop and possibly the dealership to work out. At least it's fully drivable and I'm hoping it's just a senor or something is screwy since it does got into 4LO as far as I can tell, it just gets an error after a few feet of movement. 4H and 4Hauto are perfectly fine but I'm not entirely convinced they are working right, the truck just doesn't feel planted on forest service roads like it did all year in dry or rain.

 

[dcmdon]

Yes I have "limited slip".

I didn't realize SelecTrac precluded getting the limited slip differential. (but frankly, if you have that auto-4 mode LSD wouldn't really have much impact or be needed)

My Silverado had both limited slip AND their version of "SelecTrac" - an automatic mode in the transfer case.

I put limited slip under my 73 because frankly, as one guy put it - "that's too much horse power for that car with the light rear". The car will never see winter or slick roads so there was no other real motivation (that, plus a guy delivered the differential and 4 springs for the car to my shop door for 350 bucks, a deal I couldn't refuse or pass up)

My SX4 has open differentials - and frankly, I can't see the need for it under that car - if conditions warrant, I put it in 4 wheel drive and move along.
Since restoration, though, that car will also never see salt, snow and ice. It gets parked at the first sign of slime/brine on bridges. But on WET roads, it's fantastic!

Oh no. I meant getting a Rubicon or Mojave with lockers precludes getting a limited slip.

I may not have been clear. But this discussion has still made me realize that while driving around on the road, the Rubicon and Mojave are going to be inferior to any other Gladiator equipped with a limited slip rear diff.

Re the SX4. doesn't that thing weigh like 3500 lbs, have 130 hp and 4wd? Not exactly a prescription for wheel spin. Ha.

I remember when the SX4 came out. I was a fan of rally at the time and they did surprisingly well.

 

[be77solo]

Ha, I can't get mine to break loose when I try really hard. Romp it and it grips and goes. Any sand or grit - it might slip for a split second, then it grips. The engine bogs to limit torque to the rear and on wet pavement, I can't get a tire to really break loose when I get on it and take the turn like I was 14 again.
When I goose it hard to get through or get around a corner at an intersection because of heavy traffic - I couldn't break the tires loose on a bet.
I can drive this thing like I was driving one of my Javelins - and can't break a tire loose.
If it's already moving it's even worse - no way in hell this would break a tire loose, just won't happen.
Snow or ice, that's different..........

That's interesting... I can spin both rear tires any time starting out even with traction control on... it just lets them spin a bit and then starts to cut power. But busting them loose is any time I want (or don't want occasionally lol). I do have a manual, but aren't dumping the clutch or anything like that. Hell, even an enthusiastic 1-2 shift will solidly chirp them on dry clean roads, or flat out bust them loose in the rain even with traction control on.

Having said that, I actually do like that (at least on mine) they let them spin a bit before the nanny systems kick in. So many new vehicles are ridiculous in how aggressive their traction/stability systems are set up. You do have to be aware of it going around turns in the wet though.

This is on the stock Willys M/T tires with limited slip rear end. And then of course, with traction control off, my son loves the occasional donut in an empty parking lot or field

Curious what the OP finds out about his.

 

[be77solo]

Having trucks and living in Oregon my whole life, I am surprised how much this one slips. My traction control is on but doesn't engage. When wet I can take off in a straight line spinning the wheels, spin completely sideways at low speed with a little gas which I did by accident this morning. I tried a quick start with a trailer to make it across a busy road and shockingly started to spin out, had to let of the gas to get traction. This feels more like my first pickup truck a 1990 Nissan 2WD without traction control. I've adjusted my driving but clearly will have to slow it down some more.

I would describe mine much more like yours than the experience ShadowPapa is having on his.

Now, I actually like it setup like this as mentioned in my other post, but I can see how others might not.

 

[ShadowsPapa]

Oh no. I meant getting a Rubicon or Mojave with lockers precludes getting a limited slip.

I may not have been clear. But this discussion has still made me realize that while driving around on the road, the Rubicon and Mojave are going to be inferior to any other Gladiator equipped with a limited slip rear diff.

Re the SX4. doesn't that thing weigh like 3500 lbs, have 130 hp and 4wd? Not exactly a prescription for wheel spin. Ha.

I remember when the SX4 came out. I was a fan of rally at the time and they did surprisingly well.

3200-3300 pounds stock, mine has a built 1994 HO 4.0
(Comp Xtreme 4x4 cam, shaved .024 off the head, MOPAR performance valves/springs/keepers, Harland Sharp aluminum roller rockers, etc.)
and yes, I can break the tires loose in 1st pretty easily and can snap the clutch and make the tires chirp in 2nd - that's with a 2.73:1 axle ratio (was originally a high altitude car)
The 2wheel/4wheel drive mode is selectable. I normally run in 2 wheel drive but hit 4wheel mode now and then to lube up the front differential carrier gears, etc. - or when 4 wheel drive mode might be best based on road conditions.

 

[npgeorgeuw]

I would describe mine much more like yours than the experience ShadowPapa is having on his.

Now, I actually like it setup like this as mentioned in my other post, but I can see how others might not.

I hadn't consider it but now to think about it it is quite easy to spin my wheels on take-

Having trucks and living in Oregon my whole life, I am surprised how much this one slips. My traction control is on but doesn't engage. When wet I can take off in a straight line spinning the wheels, spin completely sideways at low speed with a little gas which I did by accident this morning. I tried a quick start with a trailer to make it across a busy road and shockingly started to spin out, had to let of the gas to get traction. This feels more like my first pickup truck a 1990 Nissan 2WD without traction control. I've adjusted my driving but clearly will have to slow it down some more.

I also have had this same experience. I read many places on here that traction control on the gladiator was aggressive and I'm like really? It seems like it's never there, I do have selectrac and a rear LSD so I'm not sure how or if that factors into how and when the traction control nannies take over.

 

[ShadowsPapa]

I hadn't consider it but now to think about it it is quite easy to spin my wheels on take-


I also have had this same experience. I read many places on here that traction control on the gladiator was aggressive and I'm like really? It seems like it's never there, I do have selectrac and a rear LSD so I'm not sure how or if that factors into how and when the traction control nannies take over.

Then something ain't right. The point of traction control is to keep all wheels moving at the same speed regardless. If you can spin a wheel, then something is amiss.
I could easily get out of my UNplowed snowy (deep) driveway with my Chevy due to the traction control working - even in 2 wheel drive mode.
I have noticed my JT isn't as good as the chevy was in that way - I sometimes absolutely must shift into 4 wheel mode to get out. On the Chevy I could hear and feel the brakes alternately working to stop wheel spin and it felt like it was "walking up the driveway". My JT will spin which I find weird, but when I am on the pavement, there's no way I can break the wheels loose.

 

[npgeorgeuw]

Oh no. I meant getting a Rubicon or Mojave with lockers precludes getting a limited slip.

I may not have been clear. But this discussion has still made me realize that while driving around on the road, the Rubicon and Mojave are going to be inferior to any other Gladiator equipped with a limited slip rear diff.

Re the SX4. doesn't that thing weigh like 3500 lbs, have 130 hp and 4wd? Not exactly a prescription for wheel spin. Ha.

I remember when the SX4 came out. I was a fan of rally at the time and they did surprisingly well.

It is possible (at least in February of this year) to custom order Rubicon and Mojave transfer cases with Selectrac/4Hauto but is also pretty much impossible to find a Rubi or Mojave with Selectrac without ordering it custom, at least around here. I found one Mojave that had to be shipped across state and they (of course) were giving me zero discount after that transfer. In the end, I felt I was making the best choice from a traction standpoint with both the LSD and Selectrac and now that I've added the front locker, I'm very happy. I'm not expecting miracles but wanted to maximize my traction on road if it all possible. Interestingly, i had to explain the difference between Rocktrac and Selectrac or Commandtrac for the people who were doing the inventory searches. It was multiple dealerships that I had to explain it to so it's not an outlier.

 

[npgeorgeuw]

Then something ain't right. The point of traction control is to keep all wheels moving at the same speed regardless. If you can spin a wheel, then something is amiss.
I could easily get out of my UNplowed snowy (deep) driveway with my Chevy due to the traction control working - even in 2 wheel drive mode.
I have noticed my JT isn't as good as the chevy was in that way - I sometimes absolutely must shift into 4 wheel mode to get out. On the Chevy I could hear and feel the brakes alternately working to stop wheel spin and it felt like it was "walking up the driveway". My JT will spin which I find weird, but when I am on the pavement, there's no way I can break the wheels loose.

on pavement, i also can't break loose but any hint of gravel on that pavement (I used to have a gravel drive that transition to a asphalt road) or a few leaves or a twig or pine needle and I spin without issue. Sounds like that's not too far from your experience?

 

[npgeorgeuw]

So my update on the 4LO error ended up being a tire size discrepancy between what was set and where my tires are at now vs when I picked it up at the dealership and kept that setting in the Tazer. My original setting was 34.5 (which is about right for an unloaded "35 inch" AT3W but actual was 33.5 inches as measured with load and ~34-35PSI. I know that people air up/down at trails quite often so I'm curious now why my specific Jeep is SO very sensitive to tire setting? Their and my thought was some combination of 4.88 gearing and the 4Hauto/Selectrac having more sensors involved in the transfer case? They have seen zero gladiators with Selectrac and the OBD errors they found were supposedly consistent with the tire size setting. But really? An inch causes/triggers 4LO warnings? Can that setting discrepancy be responsible for traction control slop, etc?

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