Originally Posted by F150_Dave

Check to make sure the front and rear ratios are the same. Other than that, it looks like abuse. Maybe driving on a hard surface in 4x4. In 36 years working in a dealership the only thing I've seen close to that was a cop car that went from reverse to drive during a pursuit that twisted and snapped the trans output shaft just like that.

Originally Posted by Shidyfidy

Hello everyone,
I'm new to the forum and need some help. First off let's start with the story. 2014 Eco boost 23000 km stock tires. So I drive into 8" of hard packed snow doing about 30km. Make it about 10'. With the truck stopped I switch into 4 high try to go forward tires just spin. I hit the brakes To stop the wheels from spinning and hear a strange noise from the front drive shaft. Back up a little ways hit the brakes and hear this strange noise again. Thinking it was normal because the truck has never really been in 4 wheel drive so I didn't know the difference. I hit the gas, before the truck moved forward there was a loud ting sound followed by a clunking. The drive shaft spinning not connected to the front diff. Turns out it twisted in the middle of the drive shaft and broke in 2 pieces. So drive out in 2 wheel no problems. Take it to the dealership and they will not warrant due to "abuse". Has anyone else had this issue? Was it covered under warranty? I feel if I wasnt 24 it would have been covered no questions asked. How do I attach a picture?

Originally Posted by Ratso

He did say he hit the brakes with the 4wd engaged and the engine rpm's at about 3500. So, why hit the brakes with the front wheels turning and a load on the engine? Based on what you said I understand why it's not covered by the warranty...regardless of your age.

Originally Posted by frieed

Somewhere between the original post (now edited) as I write this


and this one,



did a reference to 3500 rpm disappear?

Originally Posted by Shidyfidy

When 4x4 was first engaged the rpms where taken up to around 3500rpm with no movement. At which time I applied the breaks to stop the wheels and switch to reverse. The way I had it worded before I think Ratso thought I was trying to boost launch it which was not the case. So yes the reference did disapear.

Originally Posted by frieed

Thanks for clarification.
At 3500 rpm with no movement, tires were spinning?
So at any time were you applying both throttle and brakes ?

Originally Posted by meaz93

You would think the front differential could handle the adverse weather conditions. I once had a buddies jeep and it was winter. Their was some ice and snow. I was pulling it into the garage from the outdoors. Revved it up and thought I would throw a little rooster tail? I hear a pop noise....snapped the front drive shaft?! My fault, but I thought chri**....it's a jeep -right! So.... obviously the tires grabbed something solid through all the snow and ice...... the rest is history. Sucks. Hope something positive comes out of this for you, especially since this is your first issue with the 4x4.