How to properly use 4WD with MT

[shootify]

Hi guys, i recently got a JTR MT, and I'd like to hear from you guys whats the proper way to put the truck in 4H, and 4L with MT.

IN AT usually do 1-20 miles to shift to 4H and complete stop 4L, Does this apply to MT as well?

Cheers

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[Fly-by]

Not sure what's recommended, but I shift 2H-4H and back up to 50mph. In and out of 4L at a complete stop. Mojave 6MT.

 

[Gvsukids]

Hi guys, i recently got a JTR MT, and I'd like to hear from you guys whats the proper way to put the truck in 4H, and 4L with MT.

IN AT usually do 1-20 miles to shift to 4H and complete stop 4L, Does this apply to MT as well?

Cheers

Did you check the manual? Try rolling into four low under 5 mph.

 

[PuddleJumper]

gladiator is the first truck I've gotten that can enter 4LO while moving. Toyota you have to come to a complete stop and put the trans in neutral. On a MT glady I'd just treat 4HI like a gear shit, clutch in, yank, rev rpms back up, clutch out. 4LO I'd do in 1st gear and modulate the clutch to help bump it in. But its hilarious when we are on trails now. everyone has to call on radio and say they are stopping to change between 4HI and 4LO or to engage/disengage center diff lock. I just keep rolling and it feels like cheating. I now lead most trips unless we have a newbie, then I take caboose.
I swear some of these guys I need to invent a 50ft kinetic rope on a self spooling rachet mechanism. that way I don't have to get out constantly to yank their ass back every time they think a mud hole is an open invitation.

 

[bd100]

One issue is knowing when to change the regular gears while in 4-low. It's possible to shift into 1st or 2nd while moving too fast for that gear in 4-low, resulting in a surprising syncro or engine rev. Just go slower than you think if downshifting.

Another issue is you must avoid gaining speed down hill while holding in the clutch pedal. Keep the clutch engaged, or shift to neutral! Apparently the transmission can over-rev in 4-low if you roll down hill too fast in gear, even while the clutch is held in.

 

[PuddleJumper]

One issue is knowing when to change the regular gears while in 4-low. It's possible to shift into 1st or 2nd while moving too fast for that gear in 4-low, resulting in a surprising syncro or engine rev. Just go slower than you think if downshifting.

Another issue is you must avoid gaining speed down hill while holding in the clutch pedal. Keep the clutch engaged, or shift to neutral! Apparently the transmission can over-rev in 4-low if you roll down hill too fast in gear, even while the clutch is held in.

yeah the glady needs a much heavy flywheel and a lot more clutch pad/contact patch area. the 6MT is so much better with something like an ACT clutch. It feels like a truck. It doesn't lose rpm quickly and has so much more momentum.

 

[Duece McCracken]

One issue is knowing when to change the regular gears while in 4-low. It's possible to shift into 1st or 2nd while moving too fast for that gear in 4-low, resulting in a surprising syncro or engine rev. Just go slower than you think if downshifting.

Another issue is you must avoid gaining speed down hill while holding in the clutch pedal. Keep the clutch engaged, or shift to neutral! Apparently the transmission can over-rev in 4-low if you roll down hill too fast in gear, even while the clutch is held in.

Yeah, first time I took mine out I went a bit too quick on a 1-2 in 4 lo. Gotta rub it a bit, slow the process down. Quite a bit different feel for sure. JTR stock tires/4.10. Lol

B&M shifters have made things quite a bit different now, in a good way!

I need to get offroad again. Adulting is getting in the way, lol.

 

[Bowser-II]

I found 4lo shifting sweet spot is low speed, between 1~5, but it is not too bad if your stopped for some reason.

locker engagement is so quiet it can barely be heard.

Embarrassing part is having to recalibrate shifting when you are back in 4hi or 2hi. The first gear, in the Mojave at least, should probably be lower for street driving but is actually sized very nice when your in 4 lo.

I also found that I could trust the low speed in 1st and 4lo to not stall, I did once and it was my fault, on the rocks. Second attempt on the same line and it crawled right up.

Definitely keep it in gear going down hill, again, trust the truck, and the Nannie’s if you have them on. It’s funny, but after coming from the H3 Adventure to the Mojave I expected to have more of a relearn, but it all feels natural. If your going to be in the rocks I can see the Rubicon 4lo and manual combo being a dream, but…..

Mojave, with 6MT, nannies off, 4hi, rear locked and those east coast washboards are fun!!!!!

 

[Fly-by]

B&M shifters have made things quite a bit different now, in a good way!

Sounds like you got the B&M for both the transmission and t-case?

I installed the B&M on the 6 speed and absolutely love it.

The stock t-case shifter is really snag prone and balky in my vehicle. Is the B&M smoother?

 

[Duece McCracken]

Sounds like you got the B&M for both the transmission and t-case?

I installed the B&M on the 6 speed and absolutely love it.

The stock t-case shifter is really snag prone and balky in my vehicle. Is the B&M smoother?

Gotta say, the T case shifter is a complete gamechanger. That extra leverage makes a huge difference. Makes operating the T case dramatically easier. That stubby OEM setup is too short and too low for efficient operation.

I'm running an ACT promass now as well, making my manual trans experience more traditional. Thankfully.

 

[Empty Pockets]

Going to 4 hi is a cinch. To hit 4 low I also, whenever possible, do it at a very slow roll. Be sure to look at the diagram on the knob. The transfer case can be a bit stiff, but the shift becomes easier with use.
I learned a long time ago to engage and disengage from time to time in order to keep all the gears oily and seals wet. Not sure if it is as important today as it was back in the Dana 18 and 20 days, but I do it. I’ll simply engage the 4 Hi on a straight stretch of road for 25 to 50 yards and then disengage. I’ll do this once or twice a month. Every 2 or 3 months I’ll use a dirt road close to the house and engage 4 low for a short distance. It keeps things easy to engage. I don’t do much “real” off road stuff these days. But I want to keep things maintained.

 

[Rahkmalla]

the manual transmission is much easier to get into 4lo when at a dead stop than the automatic, but as everyone else is saying: very slow roll is both the easiest method, as well as the Jeep prescribed method according to the owner's manual.

 

[bd100]

To clarify what I was saying above:

Imagine you are in 4-low 1st gear. You push in the clutch and roll faster and faster. Easy to do in a panic. Then you let out the clutch pedal and suddenly discover you are going too fast as the engine tries to rev to 8000RPM. Big problem. Bigger still if you go even faster and part of the transmission explodes. Supposedly things can blow just from over rev even if you still have the clutch pedal held in. So shift to neutral! Or shift to a higher gear and immediately reengage the clutch.

 

[Duece McCracken]

To clarify what I was saying above:

Imagine you are in 4-low 1st gear. You push in the clutch and roll faster and faster. Easy to do in a panic. Then you let out the clutch pedal and suddenly discover you are going too fast as the engine tries to rev to 8000RPM. Big problem. Bigger still if you go even faster and part of the transmission explodes. Supposedly things can blow just from over rev even if you still have the clutch pedal held in. So shift to neutral! Or shift to a higher gear and immediately reengage the clutch.

Excellent point!

I am used to aggressive manual trans operation, and have very good monitoring of rpms as I let out the clutch. Clutching back in and grabbing another gear before danger.

On a trail going downhill, it's start decent in gear, cook brakes, hope your first gear engagement isnt a mechanical over rev, or get her in 2nd or third and brake to get into control then first gear. Those are the main options, lol

Geez, that is alot. I've had a couple decents where I didnt get 1st engaged fast enough. (Noob stuff). Wound up using the brakes and clutch in. Knew immediately I was fuggin up, but in fear of mechanical over rev/ losing control of the vehicle I rode the brakes out until I could comfortably get her back in gear. It wasnt anything super dramatic, level ground at the bottom. Not a cliff face, thankfully.

Coming from a few autotradgic XJ's, learning to offroad a manual trans has been a fun adventure. Thankfully Im not new to manuals, but the OEM clutch has been the vaguest, least predictable, and most stall prone clutch I have ever driven. Replacing it with aftermarket has made everything much much better.

 

[Bowser-II]

………but the OEM clutch has been the vaguest, least predictable, and most stall prone clutch I have ever driven. Replacing it with aftermarket has made everything much much better.

you obviously have not driven a 2017 Chevy Cruze….

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