1) driving down a paved road going about 35 mph. 2) heard a loud bang and then a metal grinding sound. The driveshaft forced its way and busted through the center carrier bearing. It only needs to happen once and it cannot be fixed. The center carrier brearing is snapped. This part holds the driveshaft. Without the bearing, the drive shaft will hang down and grind against the pavement and throw it out of balance and damage it. Eventually the driveshaft will break in two. Then the truck will lose power to the wheels which can cause an accident. 3) the driveshaft from Ford is nonserviceable. If any 1 part fails you are buying a complete new driveshaft for upwards of $1,200. None of the parts can be replaced. The driveshaft for my truck costs $1200 from Ford. The center carrier bearing could not be replaced because the bearing is installed before tube was friction welded (bad) in place. The bearing cannot be changed without cutting driveshaft apart, destroying the driveshaft. This part is only $35 but you have to buy a complete new driveshaft. I found a company that specializes in driveshafts and makes serviceable driveshafts for Ford trucks. I have heard others have this problem so this is a common driveshaft defect with 04-05 Ford F-150 trucks. I bought the new driveshaft from www.driveshaftspecialist.com F or $725 + installation. This is less than what Ford charges but is not something I feel should have to be replaced on a newer truck with this mileage and that is driven very lightly unless there is a defect in design like there is with Ford F-150 drive shafts. This is something thiat is supposed to last the lifetime of the truck.

- Milford, PA, USA

This past March, during a heavy snow storm I tried to engage my 4 wheel drive on my 2005 F150 and it wouldn't engage. Since then, I've noticed a noise coming from my right front wheel (that's since progressed to my left front wheel). Found a tsb #06-8-15 that affects the iwe solenoids on 04-06 F150's. replaced the solenoid, and still have noise. Now being told by a Ford mechanic that my actuator hubs are probably shot from water getting into the old solenoid and traveling down the vacuum hoses to the hubs.

- Concord, OH, USA

Four wheel drive does not engage. No indicator lamps. Ford had to replace 4X4 motor. 34,000 miles but 38 months so was not covered under warranty.

- Walpole, MA, USA

Front wheels do not engage into 4-wheel drive. Indicator lamps display that system is engaged and functioning properly causing a false since of security when traveling on snow covered roads. Mechanic replaced part # 7liz-3C247-a (actuator). A couple of mechanics said it was a poor design and this vacuum system was prone to water and dirt and would eventually have to be replaced again.

- Walploe, MA, USA

2005 F-150 driveshaft goes bad prematurely. The middle joint in a 2 piece drive shaft is cheaply made and unserviceable. It causes drivetrain vibration and could fail causing injury to passengers or other drivers though a accident. The part failure is a common occurrence in this vehicle and many have been already replaced. My 2005 F-150 has 72000 miles on it. The driveshaft is bad and must be replaced. Many other trucks have the same problem and do not know what it is. I paid a dealership to diagnose the problem. It took them awhile to figure it out. Unfortunately I did not have the money for the repair. I could not see spending 900 dollars for the same defective part. I am still looking for a reasonable and quality replacement. Drive shafts historically last a lot longer than the ones Ford is putting out. This is a dangerous and expensive defect. People are spending money trying to fix a vibration and overlooking the driveshaft because it is so hard to believe that the driveshaft is bad. So it is overlooked for some by the time they figure it out it could be too late for the passenger or a innocent motorist sharing the road with them. Do the right thing make Ford pay for or replace these driveshafts. Time is ticking away and the miles are clicking off on all those trucks with these drive shafts.

- Channahon, IL, USA

Having intermittent extremely violent shaking issues with our '05 Ford F-150. It only happens now and then, but when it does, you cannot even steer to get the truck off the road. It has no relation to speed or braking. Went to the dealer, they said they found the problem and replaced one of the arms, but it happened again. I noticed there are hundreds of similar complaints with all years and numerous makes of the Ford truck posted online under "violent shaking". it seems that this is a serious problem that Ford is not looking into, and it will cause a death, or many if it is not addressed.

- Simi Valley, CA, USA

The contact owns a 2005 Ford F-150. While driving between 65-70 mph, the entire vehicle vibrates. The dealer is currently inspecting the vehicle. The contact stated that the vehicle is unsafe to drive. He believed that the driveline was the cause of the failure. The failure mileage was 30,000.

- North Fort Worth, FL, USA

Bad vibration from rear of truck 55-60 mph intermittent. Ford state it is aftermarket tires. Had truck in 2 times with factory tires and 3 times with new tires for same vibration. Pinion angle changed twice on truck causing more vibrations that Ford won't fix. Now truck is leaking engine oil from rear main. I am afraid to take truck on long trips for fear of driveline failure. Numerous complaints on web of same problem. Why is Ford not made to fix this issue?truck has 6,200 miles on it and almost a year old. This could be a big safety concern if driveline failure occurs at highway speeds. I have been an auto mechanic for 18 years at dealerships and I know a tire vibration from a driveline vibration.

- Redford, MI, USA