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View Full Version : PLowing? 4 Low or 4 High


Medicjdl
07-21-2009, 12:57 PM
Just starting out, wondering if you guys plow in 4x4 Low or 4x4 High? I'm not talking about big parking lots just normal size driveways. xysport

jomofo
07-21-2009, 12:58 PM
Just starting out, wondering if you guys plow in 4x4 Low or 4x4 High? I'm not talking about big parking lots just normal size driveways. xysport

4WD Hi unless you need the extra power/traction. Backing up in 4WD-LO is the definition of 'suck'.

RobbieB
07-21-2009, 03:20 PM
Sometimes you don't even need 4wd.

grandview
07-21-2009, 04:15 PM
4 Hi ,since I don't like my tires spinning at any time when I plow.

Medicjdl
07-21-2009, 04:29 PM
I had a plow at the end of last season also and I don't ever remember even thinking about 4low. But some people on here say they use it. It must really beat up your truck. ussmileyflag

cretebaby
07-21-2009, 04:35 PM
I had a plow at the end of last season also and I don't ever remember even thinking about 4low. But some people on here say they use it. It must really beat up your truck. ussmileyflag

Why would 4LO beat up your truck?

Medicjdl
07-21-2009, 04:56 PM
Backing up or forward in 4-low puts approx 5k of torque at the driveshafts, multiply that by your gear ratio (mine being 4:10's) and that # is what you have at your axles/wheels. I am just worried about binding in transfer case. That's allot of torque. I just bought this truck and I'm trying to make it last that's all. Does that answer your question cretebaby?

cretebaby
07-21-2009, 05:06 PM
Backing up or forward in 4-low puts approx 5k of torque at the driveshafts, multiply that by your gear ratio (mine being 4:10's) and that # is what you have at your axles/wheels. I am just worried about binding in transfer case. That's allot of torque. I just bought this truck and I'm trying to make it last that's all. Does that answer your question cretebaby?

Not really :rolleyes: LOL

5k of what?

jomofo
07-21-2009, 05:07 PM
Backing up or forward in 4-low puts approx 5k of torque at the driveshafts, multiply that by your gear ratio (mine being 4:10's) and that # is what you have at your axles/wheels. I am just worried about binding in transfer case. That's allot of torque. I just bought this truck and I'm trying to make it last that's all. Does that answer your question cretebaby?

Yep - backing up in 4wd-lo is for serious **** only... Usually, if I know I'm backing up, I'll slide it into 4wd-hi while coming to a stop moving forward. Taht being said - it's not bad for your truck unless your wheels cannot slip while turning.

Medicjdl
07-21-2009, 05:12 PM
It's allot of torque I guess. Like I said I just don't want to screw anything up. That's why I was asking. My truck has 70k (70,000) Miles on it. I changed out the front and rear Diff. fluid, Transmission fluid and did a motor flush. Just have to do a transfer case fluid exchange. But I keep missing the dealer's parts dept. I guess I need that special blue lubricant. (Yes I know I am a little extreme)

cretebaby
07-21-2009, 05:20 PM
It's allot of torque I guess. Like I said I just don't want to screw anything up. That's why I was asking. My truck has 70k (70,000) Miles on it. I changed out the front and rear Diff. fluid, Transmission fluid and did a motor flush. Just have to do a transfer case fluid exchange. But I keep missing the dealer's parts dept. I guess I need that special blue lubricant. (Yes I know I am a little extreme)

Plow in 4 HI for the most part.

But plowing in 4 LO has it's place.

For example I plow a small place that has alot of backdragging uphill and I usually have a full load of salt on also. It's alot easier on the tranny to use 4 LO.

Otherwise it is like GV said, I almost never use 2 HI unless I am trying to turn sharp while spreading salt.

Medicjdl
07-21-2009, 05:31 PM
Thanks guys. :bluebounc

cet
07-21-2009, 06:27 PM
My trucks have never been in 4 low.

grandview
07-21-2009, 09:10 PM
My trucks have never been in 4 low.

If you got paid by the hour they would be!:D

Triple L
07-21-2009, 09:11 PM
I cant even imagine a Duramax in 4 Low :dizzy:

B&B
07-21-2009, 09:35 PM
Just starting out, wondering if you guys plow in 4x4 Low or 4x4 High? I'm not talking about big parking lots just normal size driveways. xysportThe 6.0/4L80E trucks like yours aren't too bad in 4Lo as far as ground speed goes but for 99% of the situations low is completely unnecessary anyway. It will however reduce heat buildup in the trans which is good, but will also burn fuel faster than the Queen Mary at full steam.

Only real situation for low would be where you need to climb a steep hill (forward or reverse) while loaded heavy repeatedly as it will reduce the strain on the trans. Other than that HI is more than adequate for any other plowing situation.



BTW, any reason this is in the Boss plow forum?

2COR517
07-21-2009, 10:17 PM
4WD Hi unless you need the extra power/traction. Backing up in 4WD-LO is the definition of 'suck'.

My experience is that 4LO gives you LESS traction. It is much easier to spin the tires in LO. Spinning tires usually leads to stuck.

I do use 4LO in places. If it's steep and the snow is deep and/or heavy.

cet
07-21-2009, 10:39 PM
If you got paid by the hour they would be!:D

Plowing by the hour I would get a Jeep with a 6' plow. Then bid a nice big mall.:jester:

Medicjdl
07-22-2009, 08:59 AM
More fuel than the Queen Mary..tymusic..good stuff BB. I don't know why it's in here. I have a boss plow and a question about using it I guess. But thanks for all the good advise guys! LET IT SNOW!!!!! ussmileyflag

jomofo
07-22-2009, 09:02 AM
My experience is that 4LO gives you LESS traction. It is much easier to spin the tires in LO. Spinning tires usually leads to stuck.

I do use 4LO in places. If it's steep and the snow is deep and/or heavy.

I find that to be true if I leave it in low gear, but I find my starts are smoother if I need that torque in 4wd-lo, than if I try to start in hi and the tranny kicks down hard. In low, I can just ease on the gas and it'll start off nice in 2nd.

JDiepstra
07-22-2009, 06:38 PM
I've never need 4Lo.

Glacier
07-24-2009, 12:12 AM
I like 4Hi, but were plowing parking lots.

_________________
Snow services (http://www.glaciercompanies.com/snow-removal.html)

09dieselguy
08-14-2009, 12:59 AM
I cant even imagine a Duramax in 4 Low :dizzy:

ya my truck is slow in reverse any how. 4 low would be the suck.

towpro570
08-14-2009, 02:39 AM
i have 4 4x4's we realy only use 4wd when its deep or icy 3 of the 4 4x4 are stick so when in 4wd that changes the gear ratio greatly but we also have 2 2wd with 8.6 and the push good

cretebaby
08-16-2009, 12:00 AM
i have 4 4x4's we realy only use 4wd when its deep or icy 3 of the 4 4x4 are stick so when in 4wd that changes the gear ratio greatly but we also have 2 2wd with 8.6 and the push good

Excuse my ignorance, how does 4wd change the gear ratio?

2COR517
08-16-2009, 12:02 AM
Excuse my ignorance, how does 4wd change the gear ratio?

I was going to ask that too..............

Bajak
08-16-2009, 12:12 AM
Excuse my ignorance, how does 4wd change the gear ratio?

Twice the gears are working:dizzy: dum**:drinkup::D

towpro570
08-16-2009, 12:58 PM
Excuse my ignorance, how does 4wd change the gear ratio?

2wd eng turns trans trans turns t case tcase drives rear end 4wd eng turns trans trans turns t case t case now running front rear and rear end thus changing gear ratio :drinkup: ussmileyflag

B&B
08-16-2009, 01:29 PM
2wd eng turns trans trans turns t case tcase drives rear end 4wd eng turns trans trans turns t case t case now running front rear and rear end thus changing gear ratio :drinkup: ussmileyflagSee Scotty? The more axles you have the more gear multiplication you gain. :sleeping:

Milwaukee
08-16-2009, 01:30 PM
My experience is that 4LO gives you LESS traction. It is much easier to spin the tires in LO. Spinning tires usually leads to stuck.

I do use 4LO in places. If it's steep and the snow is deep and/or heavy.


I say little disagree with this

4L help me push snow MORE without floor on gas to roll fast but they are easy on transmission by not work hard to spin in 4H Those was 01 F250 but not sure how it difference from chevy or dodge.


If it 1/2 ton truck I would use 4L

2COR517
08-16-2009, 01:57 PM
See Scotty? The more axles you have the more gear multiplication you gain. :sleeping:

Do dual wheels give more multiplication too? And what about an air sprung tag axle? A tag would be cool on the 97 I think.

B&B
08-16-2009, 02:10 PM
Do dual wheels give more multiplication too? And what about an air sprung tag axle?Only when the paint fumes get too thick. :D

2COR517
08-16-2009, 03:04 PM
Only when the paint fumes get too thick. :D

Fumes? What fumes?

cretebaby
08-16-2009, 05:01 PM
2wd eng turns trans trans turns t case tcase drives rear end 4wd eng turns trans trans turns t case t case now running front rear and rear end thus changing gear ratio :drinkup: ussmileyflag

Eh??????????:dizzy:

stillen
08-23-2009, 12:00 AM
im betcha i dont even use 4hi 90% of the time. I do mostly resi drives and i just drop plow as soon as I hit the driveway. Then i back up and drop plow and go forward again only using 3/4 of my plow at an angle, back up do it again.... etc......I figure as long as my wheels are driving over a cleared path, no need for it...I have also used 4hi a few times for making my intial pass when I let the snow accumulate almost 15 inches one time...after that it was 2hi using only 50% of my blade width

if i start to spin a bit, i reach down and move the transfer lever into 4 hi for a tad.... I don't think my current truck has ever been in 4lo.. no wait i lie.... it was once when i wanted to see it climb a hill with nuthing touching the throttle...... it was eerie to have that thing just crawl up with me only steering.....

RichG53
08-23-2009, 08:55 AM
If you have the Tow-Haul mode button on the shift lever it helps also in plowing ... Trans does not shift to quickly holds in gear a little longer !!!!

JohnnyRoyale
08-23-2009, 09:18 AM
My trucks never go into 4 low either. Dont even know the purpose of it really.

jb1390
09-09-2009, 01:35 PM
Like has been said, 4low sucks for backing up, because it is so slow. I use it on one parking lot I plow with a very steep hill, and sometimes one of my driveways as well. Keeps the tranny temps down, and it seems like a bad idea to me to hold the engine at 2500 rpms (barely moving) while pushing uphill with 4000 lbs of sand salt plus the weight of truck and plow and spreader, running 230 F in the tranny :yow!:. But then again, as long as there isn't a foot of snow down it's not needed. It is better for the transmission, but it costs you time.