GRK_TL

Guys,

Anyone know what the differences are between the 4Hi & 4Lo drives?
When do you have to use each one?

Someone explain it to me.

thanks in advance
John

BC2G

4 low/high is referring to the torque... for really sticky situations where you are going to be going very slow you would want 4 LOW. but you cant go over probably about 30 w/ 4 LOW

4 HIGH would be for example if you were in need of all four wheels but not in such a bad situation.. maybe if you were driving through snow or heavy rainfall... but still going faster like on the highway or such.

astro

^^^^ wrong.

4lo is only to be used at speeds below 15MPH, and when you need to go straight, but not make turns.

GRK_TL

"below 15MPH"

Why would one ever drive below 15 MPH?

there have to be more reasons

leftride

iTrader: (1)

are you talking 4x4?

i belive 4 lo the rear differential is usually locked, that that is why you have to go slow since the differential is locked it cant compensate for the outer wheel traveling further than the inner wheel in turns.

BC2G

my bad 15> ....

i had the principal right ... 4lo is for slow difficult obsticals... 4hi is for higher speed less difficult obsticals...

leftride

iTrader: (1)

i change my statement:

4 lo is just gearing, 4 hi doesnt change the gear ratios whereas 4 lo does....

http://www.webejeepin.com/For_Beginn...s-Glossary.htm

clorich

It does wonders for engine braking when you can have 10mph be 5k RPM in first.

youngTL

Clorich said it with pictures. 4Lo gives you way more torque at low speeds to get you out of mud and up steep inclines, and engine breaking for down steep hills. 4Hi is just regular 4WD with the same gear ratios for driving on the road. You should never use 4Lo on the road unless you're stuck in a snow drift or something, or pulling someone out of the ditch with your truck.

D. Jeckle

D. Jeckle

Sorry about that youngtl, I forgot to log off before my coworker took over.

youngTL

It's okay. I wouldn't worry. People don't say shit like that to me face to face because I look tough and don't back down. A solid punch to the sternum usually shuts them up.