4HI and 4LO...what's the difference?

AZS10Crew · Post by **AZS10Crew** » Mon Dec 30, 2002 1:21 pm

Hobie's comments in my pics thread got me to thinking...what's the difference between 4HI and 4LO? I can hear something moving into place underneath when I shift into 4LO, but I never know what it is. So what's the difference?

Sorry if this is a stupid question...just wanting to learn.

Conman · Post by **Conman** » Mon Dec 30, 2002 1:51 pm

4hi, is the same has 2hi but all 4 wheels are powered. 4Lo reduces the gear ratio so you have more control and power at a slower speed. Example would be to compare 4hi to a 1-1 gear ratio(For every 1 engine revolution, you move forward 1 time. while in 4lo, it might be like 4-1(for every 4 revolutions, you only move 1 time). Like with a ten speed bike, it's easier to go up a hill if you are in a lower gear. Same principal here.

Cheers,

Con

Steven · Post by **Steven** » Mon Dec 30, 2002 2:46 pm

Yeay what he said....

Steven · Post by **Steven** » Mon Dec 30, 2002 2:46 pm

Yeah what he said....

AZS10Crew · Post by **AZS10Crew** » Mon Dec 30, 2002 3:06 pm

Thanks...that helps. Learn something new every day.

a2b · Post by **a2b** » Tue Dec 31, 2002 8:42 am

so does anyone know what is the ratio. i know its not 4 to 1. that would be great. so what you are hearing under the truck is the transfer case kicking in. thats why its important to be stopped and in neutral. the transfer case also, locks the power from the front to the rear and doesnt slip like AWD vehicles. thats why you dont drive on concrete or any dry flat surfaces with it, you will tear it up no time. 4hi is great for snow and mud where speed is nescessary. 4-lo is for going up real steep cliffs slowly or towing some one out of a ditch where you need all the gears you can get.