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Topic Review (Newest First)
04-06-2011 07:31 PM
John412 This is a skewed conversation Diffrent conditions and terrain require diffrent selection of what gear or t-case speed to be in. I believe the op is speaking of a crawling over and around type situation. Where I go 80% of it can be done in 2wd as long as you know your terrain, use your head and have your traction control off. In my case it's great being able to shift on the fly. For people that do rocks and trails of that type 4lo is viable. I put my jeep there once and it was only because I wanted to see how it crawled up a mud filled gulch without having wheel spin and made some tight turns to get to know how to handle that if I needed it. I typically only need 4h with proper air pressure and when crossing rocks or deep water. I have never been through a rock garden like I will be seeing soon on my next trip to an ORP so I guess I may actually need it for that.
04-06-2011 06:49 PM
Tiki2Rubicon
Quote:
Originally Posted by Mortalis5509

Southern Boy???? Not so sure about that. You are well beyond the mason-dixon line...lol

Rubi is my daily driver and it's my worst fear and rolling it. Now my other Jeep I wouldn't mind it but would still be a problem.
Grew up in Georgia, riding PBRA for six years, got Waylon and Hank in the Jeep, my hat's on the table, boots at the door. Yeah, the south is full of Yankees!
04-06-2011 06:43 PM
Tiki2Rubicon
Quote:
Originally Posted by KBR97

You need to find some better trails then
There is a difference between crawling and trails. Some othe trails we ride, a winch won't do it, we've got a Versatile.
03-25-2011 02:02 AM
KidRock171
Quote:
Originally Posted by Mortalis5509

Your missing it entirely. Your on the gas in 4 hi to go over something. Your applying more and more gas slowly to go over something but the jeep not going over whatever is in your way. Example: now say your at 3k, 3.1k, 3.3k, 3.4k, and so on and just not going over it but the tires aren't slipping yet. When do you say that's enough I need 4 low before I break something?

Follow me?
I have this happen alot. If it's just an incline back down and roll Into it get on the gas and don't let the tires stop. But if you hit a bump and get locked like you said and have to start at a stop try in 4 lo and pump the gas so they will pull through Instead of stall out. Know what I mean? Hit the pedal to get em moving if your rpms are climbing without movement. But do not! Force a stall, sh*t will get real. Add brake release gas then punch it. And I use the term punch it very loosely.
03-25-2011 01:42 AM
herbie
Quote:
Originally Posted by Mortalis5509 View Post
Your missing it entirely. Your on the gas in 4 hi to go over something. Your applying more and more gas slowly to go over something but the jeep not going over whatever is in your way. Example: now say your at 3k, 3.1k, 3.3k, 3.4k, and so on and just not going over it but the tires aren't slipping yet. When do you say that's enough I need 4 low before I break something?

Follow me?
when you have reached maximum throttle and your wheels are not turning you have reached convertor stall speed and lower gearing is your only other choice and you will heat your tranny fluid fast at stall
03-24-2011 10:32 PM
Tiki2Rubicon The problem with offering 4lo and 4hi in any off road vehicle is the operator thinks automatically they can do anything in any condition. A properly trained off road driver knows when to grab the transfer case, 7 out of 10 times it can be done in two wheel drive. To criticize is childish, to opinion on one's own views is human.
03-23-2011 11:07 AM
coolbreeze Anytime you apply throttle and the Jeep doesn't move, its time for low range. If you had a transmission temp gauge, you could see how quickly the heat rises stalling your trans. Too much heat will kill your auto.
03-23-2011 09:43 AM
Mortalis5509
Quote:
Originally Posted by GroundHawg View Post
Screw the Jeep, I don't want to read a thread about you getting hurt :P

My uncle rolled a CJ back in the mid 80's. He walked away. Was angled going up a hill.

I saw a girl roll this Pirate Ship TJ 2 or 3 summers ago and broke an arm and collar bone. Put her in the hospital. Too much throttle. It went over backwards.

My friend rolled an XJ driving too fast. Hit a stump and he lost it. That was like 10 years ago. He's my age (29) and his back is still all screwed up.

Ya don't want to roll em. Personally, I haven't seen many not get jacked up from it :P
I agree. Basically saying if that were to happen in my older jeep I would somewhat ok because I wouldn't worry how I would be getting around. My plans for it is a roll cage tied to the frame with seats mounted to the cage for safety reasons. My girlfriend always goes with me and I would never intentionally do any harm. Rolls cause lots of damage.


Quote:
Originally Posted by daggo66 View Post
Some people mentioned they get in 4L as soon as they hit the trail head. In many instances this is good advice. In your example of trying to get over an obstacle and failing, many times it is too late for 4L. You can't shift on the fly into 4L as you can in 4H. Unfortunately it's too late if you're not already in 4L. Knowing your terrain is important. As Groundhog stated, 4H is best in mud, snow, and sand because momentum and wheel speed gets you through it.
Also don't you need to be in 4L to use the Rubicon lockers? That certainly would have gotten you over that obstacle.
My Rubi lockers are modifyed to where I can use them in any t case position and a switch for each locker to lock the front or rear without having to lock the other.

I was in mud, had hill climbs, and off camber situations. I was only using 4 Lo down the hills. Everything else needed more momentum than 4 Lo creates.
03-23-2011 07:05 AM
daggo66 Some people mentioned they get in 4L as soon as they hit the trail head. In many instances this is good advice. In your example of trying to get over an obstacle and failing, many times it is too late for 4L. You can't shift on the fly into 4L as you can in 4H. Unfortunately it's too late if you're not already in 4L. Knowing your terrain is important. As Groundhog stated, 4H is best in mud, snow, and sand because momentum and wheel speed gets you through it.
Also don't you need to be in 4L to use the Rubicon lockers? That certainly would have gotten you over that obstacle.
03-23-2011 01:03 AM
GroundHawg Screw the Jeep, I don't want to read a thread about you getting hurt :P

My uncle rolled a CJ back in the mid 80's. He walked away. Was angled going up a hill.

I saw a girl roll this Pirate Ship TJ 2 or 3 summers ago and broke an arm and collar bone. Put her in the hospital. Too much throttle. It went over backwards.

My friend rolled an XJ driving too fast. Hit a stump and he lost it. That was like 10 years ago. He's my age (29) and his back is still all screwed up.

Ya don't want to roll em. Personally, I haven't seen many not get jacked up from it :P
03-23-2011 12:34 AM
Mortalis5509
Quote:
Originally Posted by Tiki2Rubicon View Post
I guess I am a Southern Boy to the Roots. I have driven in every possible weather condition on and off road, and I have only needed my transfer case a dozen times.
Southern Boy???? Not so sure about that. You are well beyond the mason-dixon line...lol

Quote:
Originally Posted by GroundHawg View Post
Just be real careful doing that 1 tire thing. It takes finesse, and if the rock is big enough, based on the angle and other 3 tire locations, you can roll it. Climbing hills you need to be straight up by the time the rear tires get to start climbing.

I use a spotter for that 1 tire at a time thing. You generally can't see the passenger tire, and there are times you don't feel it get on through the steering wheel. So it's nice having someone watch that passenger side.

Since your approach is angled, it's sometimes difficult to tell you are on a rock straight. The spotter will assist in that too.

Just go slow doing it and be careful
Rubi is my daily driver and it's my worst fear and rolling it. Now my other Jeep I wouldn't mind it but would still be a problem.
03-22-2011 11:58 PM
GroundHawg Hang out in Ohio for a winter then
03-22-2011 11:42 PM
KBR97
Quote:
Originally Posted by Tiki2Rubicon View Post
I guess I am a Southern Boy to the Roots. I have driven in every possible weather condition on and off road, and I have only needed my transfer case a dozen times.
You need to find some better trails then
03-22-2011 11:39 PM
Tiki2Rubicon I guess I am a Southern Boy to the Roots. I have driven in every possible weather condition on and off road, and I have only needed my transfer case a dozen times.
03-22-2011 11:33 PM
GroundHawg Just be real careful doing that 1 tire thing. It takes finesse, and if the rock is big enough, based on the angle and other 3 tire locations, you can roll it. Climbing hills you need to be straight up by the time the rear tires get to start climbing.

I use a spotter for that 1 tire at a time thing. You generally can't see the passenger tire, and there are times you don't feel it get on through the steering wheel. So it's nice having someone watch that passenger side.

Since your approach is angled, it's sometimes difficult to tell you are on a rock straight. The spotter will assist in that too.

Just go slow doing it and be careful
03-22-2011 11:23 PM
KBR97 Considering I tend to follow the rocks...I usually throw it in 4lo as soon as I hit the "harder" trails. Other wise I stay in 2wd.
03-22-2011 11:22 PM
Mortalis5509
Quote:
Originally Posted by GroundHawg View Post
Did you try 1 tire at a time?

That's not just for big rocks. A steep embankment can be taken like that to. Go at an angle across the bottom, then cut hard, get the other tire on, straighten out, then go up.

I'd probably try it in 4lo. Anytime you want muscle or engine braking, go 4lo, speed or tire spin go 4hi
Didn't do the one tire at a time deal. I didn't think it was that high but I was going slow at it slammed into it. I was going 3mph or something but it stopped me in my tracks. Caught the lower portion of my bumper on something and nicked it. Rattle can fixed it though. May have been a small rock there sticking out that I found. Any ways 4hi wasn't happening. O well. New tactics learned. Appreciate it
03-22-2011 11:05 PM
GroundHawg Did you try 1 tire at a time?

That's not just for big rocks. A steep embankment can be taken like that to. Go at an angle across the bottom, then cut hard, get the other tire on, straighten out, then go up.

I'd probably try it in 4lo. Anytime you want muscle or engine braking, go 4lo, speed or tire spin go 4hi
03-22-2011 10:51 PM
Mortalis5509
Quote:
Originally Posted by GroundHawg View Post
What the hell are you trying to climb up? A house?

I got on the hood of a car using that 1 tire deal in 4hi. RPM's hit maybe 3. 2 tires at once I started pushing the car at 4ish. Wouldn't climb up
Why not climb a house....get creative.

Naw, I was somewhere a few weeks back and had both my lockers locked and fighting the steering some. Needed to make a very tight turn. I was going to go up this embankment in 4hi and Rubi wasn't taking it. Maybe if I had put the gas on a little harder and not slow. Right after making my 90 point turn..lol I thought why didn't I use 4 low to go over that. Back down turn n go. I choose to back up and then forward quit a few times.
03-22-2011 10:39 PM
GroundHawg What the hell are you trying to climb up? A house?

I got on the hood of a car using that 1 tire deal in 4hi. RPM's hit maybe 3. 2 tires at once I started pushing the car at 4ish. Wouldn't climb up
03-22-2011 10:35 PM
GroundHawg
Quote:
Originally Posted by Mortalis5509

Your missing it entirely. Your on the gas in 4 hi to go over something. Your applying more and more gas slowly to go over something but the jeep not going over whatever is in your way. Example: now say your at 3k, 3.1k, 3.3k, 3.4k, and so on and just not going over it but the tires aren't slipping yet. When do you say that's enough I need 4 low before I break something?

Follow me?
I quit at like 3,000. When u climb rocks try doing it 1 tire at a time, you know what I mean? It's easier getting 1 tire on something than 2. Then when 1 gets on, cut the wheel and walk that other one on it.

Just don't do that 1 tire crap on hills. Stay straight on those.
03-22-2011 10:12 PM
Mortalis5509
Quote:
Originally Posted by JIMBOX View Post
Are you talking about a manual--(bad clutch) TJ/JK




Now in the JK/JKU

If you're talking about an auto-and it does that (rpm) in all gears--either faulty Torque converter/TC programing-or very low in coolant !!

When you can select gears manual/auto, there shouldn't be any time the rpm goes up BY ITSELF, unless something is wrong-as above

JIMBO
Your missing it entirely. Your on the gas in 4 hi to go over something. Your applying more and more gas slowly to go over something but the jeep not going over whatever is in your way. Example: now say your at 3k, 3.1k, 3.3k, 3.4k, and so on and just not going over it but the tires aren't slipping yet. When do you say that's enough I need 4 low before I break something?

Follow me?
03-22-2011 07:53 PM
GroundHawg I do most everything in 4hi, mostly muddin'. Much depends on the type.

For example, I go 4hi and trans in DRIVE, OD off for 90% of my off-roading. Like I said, I'm usually muddin'. Reasoning is to get through mud, tire spin and momentum is key. 4lo you lose too much speed when you get off the gas, AND if I find a hard spot in that mud with those tires spinning in 4lo, it won't be pretty. It'll be like doing a 3,000 RPM burnout in 4lo in a dry parking lot.

Same concept with snow. Don't stop, and you want tire spin to keep the treads clean/dig through the snow and find the hard road or frozen dirt. That's where the traction is.

Now hills, climbing or decending, or rocks is another story. Slow and steady wins these races. 4lo saves the brakes, keeps the trans cool, and since you don't want tire spin, the low end grunt 4lo provides is just the ticket.

As far as the trans goes, it gets hot faster doing rocks and climbing. You're pushing a steady diet of high RPM's in 1st. 4lo helps keep that heat manageable. 4hi heats the trans up faster, but muddin' isn't steady high RPM. when you get through it...you're back to low RPM driving, and she gets a little break. Snow that converter locks up with OD off early, thus allowing you to street drive in 4hi a long time.
03-22-2011 06:23 PM
Matcheen
Quote:
Originally Posted by rubicon05 View Post
Same with me. im in 4lo when im on the trails. it helps out with speed control and is alot easier on your clutch.
I agree, I find that I almost never have to use the clutch when in 4lo, my Jeep can me almost at a standstill and not have any problems. I hate trying to ride the clutch in 4hi, my left leg gets tired.
03-22-2011 05:42 PM
JeffN ^^^^^^agree. me too
03-22-2011 04:20 PM
rubicon05 Same with me. im in 4lo when im on the trails. it helps out with speed control and is alot easier on your clutch.
03-22-2011 04:16 PM
IslandTJ I'm in 4lo as soon as I pass the trail's entrance.



When I am exiting the trail, I shift back into 2wd. I don't really use 4hi when I trail.

I use 4hi primarily during winter on snow covered roads.
03-22-2011 01:53 PM
JIMBOX Are you talking about a manual--(bad clutch) TJ/JK


Quote:
Originally Posted by Mortalis5509 View Post
Auto.

Know 4 low creates less work on everything. Lets say your in 4 hi and wanna go over something. The trail is easy and only requiring 4 hi. Now said obstacle is running your rpm's up and the tires aren't slipping. When do you say I need 4 low? Is there a rpm number? Feel? Just know?
Now in the JK/JKU

If you're talking about an auto-and it does that (rpm) in all gears--either faulty Torque converter/TC programing-or very low in coolant !!

When you can select gears manual/auto, there shouldn't be any time the rpm goes up BY ITSELF, unless something is wrong-as above

JIMBO
03-22-2011 01:46 PM
InvertChaos What kind of obstacle is this? Can't you just back off the throttle a bit to get the rpm back down to 3000 or so?
03-22-2011 01:46 PM
Cons_Table
Quote:
Originally Posted by Mortalis5509 View Post
Auto.

Know 4 low creates less work on everything. Lets say your in 4 hi and wanna go over something. The trail is easy and only requiring 4 hi. Now said obstacle is running your rpm's up and the tires aren't slipping. When do you say I need 4 low? Is there a rpm number? Feel? Just know?
If I cant get going fairly quick, Ill give it a run in 4L and switch back to 4H as soon as I am done with whatever obstacle slowed me down.
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