Wondering if anyone else has had this happen to them and wondering if it is the Tires on my truck.

I have a 2010 F350 srw sc long bed.

Called for snow so I Salted driveway before going to work on evening shift. Came home in 4" of slushy snow, pulled in the driveway and parked. Looked out later and my truck had slid down the driveway about 4-5 feet. Two more and he would of been in the street. This also happened twice last year.

Had my truck at the weigh station and came out as 6985 lbs.

I still have the Contrac tires that the truck came with. They perform ok on dry pavement but not good in mud or snow.

Could it be the Tires holding snow and then when I pull in the driveway(small slant) with snow, then slides?. Got me stumped.

I do plan on replacing the tires maybe this summer with either BFG AT, Firestone Transforce AT, General grabber AT2, or Goodyear Duratrac.

Anone have this happen to them?.

 

mine has done the same thing before. you park in the same spot everyday and when its "moved" you start to think you're losing it. its happened to me with a car and a different truck as well so i dont know why other than maybe hard pack or ice under the tires. my driveway sits at a slight angle as well.

 

Might be best to through some salt, kitty litter, or ice melt behind the tires.

 

Warm tires melt the snow enough then it re freezes

 

There's your problem.

 

I'm with redford, I had them also and they were by far the worst snow and ice tire I have ever come across.

 

If it is steep enough though I can see it moving. My mom and dads driveway is on a hill and with just a little snow my truck will slide when I am getting out to open the gate, and I run BFG's.

 

I used to live in 4 seasons and did lot of ice driving. Per my experience snow tires are just that. They will make difference on snow, but when it comes to ice -everything slides. I mean can you tell the difference between 100 and 105 lb of traction?
First question do you park with parking brake on, or transmission only?
When you park with transmission brake only, when one tire has less traction it will vibrate the differential and whole thing slides much easier. Applying parking brake will help, but with the risk that wet parking brake cable will freeze overnight.
What is wrong with dumping some sand on the driveway and putting a brick under the wheel?

 

If the truck is a 4x4 try parking in 4x4 engaged. You will then have all 4 tires locked in place rather than the two rear ones.

 

It's never happened to me...but has to my neighbor. He runs a chebby with BFG AT's...and came out with his truck in the middle of the street.

It's definitely hard when the snow is fresh...and it's late.


biz

 

Sounds like you got caught in the perfect storm of troubles.

Start with new tires. The stock Conti's are notoriously awful in snow. Tire width is also an issue. Wider is better in mud and sand, but narrower is better in snow. Most of the nameplates have a decent all season, or more aggressive tread. We have our favorites, but my fleet is set for snow more than for other duty.

Your pre-treat strategy on the drive was a good start, it keeps the snow from bonding to the pavement, but you should remove the snow too. Ideally clear it all, but in a pinch clear the areas around the tires. Wet snow can be worse than ice particularly on a hill because the water content acts as a lubricant. depending on temps, sun, grade, snow moisture, pavement type, etc. you can use deicing agents to burn off up to 2".

Once the snow is moved, then a couple of handfuls of deicing agent will prevent refreezing.

The previous suggestions about parking brake and 4wd are also good measures.

Not sure where you are, but the meteorology crowd is talking about pattern shifts for much of the US.

 

Appreciate the reply and suggestions. Shovel, chemicals and chuck sounds good. Also plan on replacing the tires with BFG's, Firestone Transforc, Goodyear duratrac or General grabbers. I figured the tires were just highway tread. They always acted squirrely in mud and snow. 30,000 on them, rotated twice and front end alignment did help.
Thanks again,
regards

 

Not unless you have manual locking front hubs.

 

Why is that?

 

this is good advice and should help alot being that the engine is over the front axle. dennis is right about the manual locking hubs, once the engine is turned off you lose vacuum and thus the hubs unlock, good point