Is this much shaking normal?

Hey guys,

Just wanted to get this out there. I never had a pick up before, but my parents do have a 2004 4Runner that I've tried the old "push the rear back and forth" trick with and dont get as much body shake with theirs.

There are no problems with the Tundra besides some rattles and some steering pull due to a steering rack but this is just out of curiosity.

Does anyone else's shake?

 

Doesn't seem too crazy but it could be the suspension bushings are worn and allowing more movement.

 

I see. I have replaced every bushing in the front besides the UCA. However, I have not touched anything in the rear. (That sounds nasty I know but just being honest)

 

How old are the shocks

 

Your right hand is just strong.

 

Rear shocks are old. They were white KYBs at one time in its life and now they are rusty with spots of white. Didn't consider this but I could see how it could be the shocks.

Front shocks are just a few months old. Bilstein 5100s

 

There's also the fact the early trucks didn't come with a sway bar in the rear. Like @Hbjeff mentioned the shocks could be part of it, and the leafs being worn or having a missing clamp could also add to it.

All that said my 04 doesn't shake significantly less than that with the rear sway, new shocks, and an add a leaf.

 

Your tires are flexy as hell.

 

Mine shakes like this as well when jostled from that rear corner position.

Mostly the 285/75/16 tires are responsible for most of the movement.

Nothing concerns me on mine as this test is an unusual one.

 

I went outside this morning and shook my truck the same way. Didn't sway nearly as much as yours, but keep in mind my rear leafs aren't stock, the rear bushings are 5 years old, my entire front end was given all new joints and bushings a thousand miles ago and I'm on E rated tires. Mine didn't twist like yours but kind of rocked left to right.

I got some really funny looks from the neighbors who saw, I awkwardly waved and said good morning, they didn't respond. Glad I was at my brother in laws house and not mine.

 

Looks normal for an older truck to me. Most of that looks like its in the tires to me.

 

Looks like there’s very little (almost none) movement between the body and the rear wheel.
The movement I’m seeing is all tire flex.

 

I rotated and aired my tires down from 37psi to 35psi this past weekend and noticed today the truck is a little looser on the road. Jiggles a bit more on the jiggle test. Think I’ll air back up to around 38psi as I think the truck drives better.

 

How much force is applied to get it to shake like that. Does the trk drive straight, or wiggle down the road similar to that? When you shake it, where on the trk do you hear noises coming from? What is the the ""old "push the rear back and forth" trick"" supposed to tell you? Never heard of it.

Lift the trk up and grab the tires at 3 and 9 + 12 and 6 o'clock position and push/pull opposite sides simultaneously a few times to ck for loose bearings. You can have someone lay on their side behind the trk (not underneath) to look for springs moving side to side, or if they remain straight.

My 02 doesn't have a rear sway bar, but might get one due to pulling 4000lbs behind it a couple times a month.