aqua8s

I got an f150 lariat 2004 when I turn the wheel an get on the gas a little the rear right wheel start shaking an jumping.

ANY SUGGESTIONS?

oxide80

Check lugnuts and wheel bearings?

driver444

You said the right rear wheel, but didn't say which way you're turning the steering wheel to make it do that. Is it ONLY the right rear tire, or does it make a difference which way you're turning? Do you mean that the tire breaks traction with the pavement?

I believe your problem is in the rear differential.

If you have a limited slip rear axle, you could be experiencing clutch chatter. This is when the clutches in the differential don't operate smoothly. Questions....

1. Do you have a limited slip differential?
2. How many miles on the truck?
3. How long ago since the last time you changed the rear end lube?
4. When you changed it, did you use the friction modifier additive? (necessary)

Could be worn clutches, or no friction modifier in the gear oil.

Another problem that occurs in differentials, (open or limited slip) is when spider gears and/or spider gear pinion shafts get worn. Usually that's on higher mileage trucks though. There is play in the fitting of the spider gears, and slop where the pinion shaft goes through.

Hard to say without seeing it.
I would definitely check what Oxide80 said. Those would have an effect too.

aqua8s

It does when you turn the wheel both ways
yes it has limit-slip
It has 124000 miles on it
Im not sure about the last diff change I bought the truck a month ago

JJNTJ2003

Mine did that also when you put in a strain such as uphill or turnig sharp had to have clutch pack replaced

driver444

One of the first things you should when you get a new truck is change all the fluids. Most people neglect the rear differential. I've seen trucks with 150,000 miles, and original rear end fluid, (and more than a couple metal shavings).

Sometimes (usually) a fluid and additive change will be enough to solve the chattering issue, but with 124,000 miles, your clutches are gonna have some wear. Even if you change the fluid, your limited slip feature is going to be alot weaker than when the truck was new. Not a huge deal. These things were meant to wear out. I agree, you'll probably have to have the clutch packs or the whole carrier unit replaced. (probably cheaper and easier to buy a ford racing trac-loc, and drop it in there).

oxide80

Just TOUGHT

04SilverF150

My 2004 F 150 did this at 32,000 miles. Right turns seemed to be the worst, but occassionally I experienced vibrations when accelerating, up hills, etc... got my rear clutch pack replaced and it fixed the issue.

Clean03Silver

i am starting to get these vibrations in my truck as well. i have an 03 f150. i just recently had a duel cat back system put on it and after that was done my truck began to shake upon hard acceleration and cruising at like 55-60mph. do you think this is the same problem?