stopping on ice

Most of the people seem to forget that front and rear wheels are locked in 4HI, which will have an effect on braking. And the op didn't ask for "parental advices" here, he just submitted a fact, so please stop with that "you must slow down where it's slippery" know-all, and stay on subject.

For I, I have not observed a difference in braking in 4wd, but sure will look at it, I really think it might have an effect where wheels will brake more evenly.

 

40 mph on ice? real ice? or icy conditions?

that is crazy. i go slow.

4x4 braking on ice doenst do jack. same four brakes grabbing the same four tires..

 

you should always have 4 wheels stopping you.. our trucks have brakes on all 4 corners.

 

Oh no, ignored by Mr Wolf. Fact is that the subject of the post is not about being more prudent and going slower when it's icy, everyone knows that, it's about whether 4HI lock have an effect on braking or no, whatever your opinion.

 

Drove from Jackson to Boise last week. It was -20 degree windchill and around 5 degrees with blowing snow and VERY slick roads. Many accidents. Solid ice for over 200 of 400 miles. 4x4 will not help in braking TOO much, but it does seem to add a little resistance to the front tires. 4x4 will always be better than 2wd on ice. Just go in 2wd on an icesheet for a little, then turn on the 4x4....big difference in traction. Has been the case with all of my trucks. For the first time in any truck, I bought two 60lb sand bags for the ride, the road were as bad as I can remember.
Biggest thing I have learned about icedriving in the last few years is to be aware of downshifing in an auto tran on ice. That will swing your backend around quickly if you throttle to hard on ice, and the trans shifts down, specially up hills, and in 2wd

I drove 60-65 comfortably in 4x4 for over 150 miles, each way.

 

Exactly. Thankyou sir.

 

torque really.... i pretty much keep my rpms under 2000 on slippery roads unless im at cruising speed around 45 ish ill probably be in 5th which i think is a little over 2k. i dont know why the retards around here with their big ass trucks put the pedal to the metal trying to accelerate, but all they are doing is destroying their spider gears. those gears dont have bearings and arent meant to spin like that. i guess its easier to do without a torque converter.
sorry im off topic too

 

On today's news. Pretty funny. Some lucky people that knew how to drive and some truly clueless ones too. Notice the people that stayed off the brakes made it?

http://www.cnn.com/video/#/video/us/2010/12/19/wa.ice.sliding.cars.khq?hpt=C2

 

This theory is incorrect, because as noted, there are brakes on all 4 wheels on every car and truck, NOT 2 brakes on 2wd and 4 brakes on 4wd.
Going by your theory you would have 4 wheels 'pushing' in 4wd, so it would be even worse.

I see just as many 4wd vehicles in the ditch during snowstorms as I do 2wd cars and trucks. People with 4wd sometimes tend to get overconfident and THINK they can stop just because they can go.

 

I got to experience this very problem myself just last week......negotiating an icy left turn and the rear end started sliding out, so I countersteer to bring the truck back in line......but failed to countersteer quickly enough and the truck continued sliding beyond "correctability" ( probably not a word, but suits my story ) so I had to let off the gas to help correct the trucks path, but all that did was slingshot the rear of the truck in the opposite direction to the point of slamming into the curb and breaking the rear wheel and bending an axleshaft......4x4 or not, I NEVER touched the brakes.......if I had locked up all 4 wheels, probably would have been even worse damage - but empty parking lot winter antics as a teenager was enough practice to keep me from panic, just wish I'd have thought enough ahead to throw it in reverse and nail the gas to slow her down.

 

In my oppinion....being in 4WD in any snowy or icy conditions is better than being in 2WD - but mostly for 'controllability'

On ice...going slow yet keeping up momentum. Giving yourself TONS and TONS of room to slow down (engine braking) with very small changes (nothing abrupt or you're screwed).

I remember working 25 miles from my house many years ago. An ice storm hit and the roads were covered with 1" of ice. It took me 2.5 hours to get home and most of the time, I kept both my passenger side tires on the right burm because there was snow underneath the newly coated ice.....

 

I just put a set of the Bridgestone Blizzak DV-1M tires on my Taco last Thursday night and they're amazing on snow and ice. What a difference!
Highly recommended.

 

I agree when it's icy that we have to drive almost painfully slow, but I had no idea what was ahead of me as the road was clear before I got to the turn......and it was an uphill turn to boot, so went in blind until the truck had already started sliding. Sucks too, was hoping this was a good excuse to replace my stockers with sweet aftermarket wheels, but the dealer is taking me for $1250......there goes the shiny new wheel money

 

I wanna play on the ice......

 

Keeping the wheels turning while on ice is the key to keeping control . Slowing down can be a trick , slowly on the brake , and off if you feel a lock up , let the wheels turn , keep steering control , repeat as necessary .

 

LMAO!!!!!! Very funny...

I just have to note the taco at the end was being all careful making it down just fine and some doucher in an F250 came barreling down and almost flipped his rig... Jerk offs.

 

that video was amazing im so glad that tacoma made it threw there safe hahaha

 

Better to mount the curb with wheels facing then slam into it sideways attempting to stop. But like OZ-T said, wheels turning. That's the point of ABS. It doesn't help you stop, it helps you retain steering ability.

 

I am kind of shocked that no one is recommending shifting into nuetral when trying to stop in an auto trans. Of course with a clutch just the same. It takes away the forward pushing and braking working against each other. I have to remind someone of this every winter and without fail I get a huge thank you!
That being said... Studded tires beat even Blizzaks on ice hands down. I buy new studded tires on average every 2-3 years for all my familys vehicles. Old studs are still better than not but new studs...I can hear them grabbing and I skid to a stop quickly. 40 Years here in the mountains of Colorado and learned to drive here before I was 10 (once in a while with parental consent....lol). I hear people compare their brand tires to studs all the time and have tried myself with a car that we couldn't get studs for, the only thing that comes close...those Yoko tires with walnut shells in the rubber.
Downside to studs....NOISE! I can deal with it as I just crank the stereo but I find the number one reason people dislike them is noise and price for a winter set of tires. You have to ask yourself "what does even a minor fender bender cost to repair and even worse a trip to the ER?!!

Jus sayin

 

They have some more brilliant icy road driving video here, watch it before it's removed cause it's on CNN.

http://www.cnn.com/video/#/video/bestoftv/2010/12/31/vonats.cars.sliding.cnn?hpt=T2