Now what?

2015 AC MT OME BP-51s 65K mi
Recently:

LCAs replaced
Lower shock bearings replaced
Tires and wheels checked/rotated
Alignment done

I’m getting a hollow sounding clunk on sharp bumps noticeably under about 30mph. Sounds/feels like it’s on the drivers’ side. It’s not, but sounds like a loose battery or something heavy bouncing around on the floor... sort of a ‘clunk dunk’ when I hit a manhole or storm drain...

I’m gonna block it up and start checking, jerking, yanking, re-torquing things tomorrow. Thoughts on what to zero in on..?

 

65k and you had to replace the LCAs,wow.

 

Maybe, maybe not... they were definitely squeaking and were fairly rusted up inside the bushing/cam bolts, but they were the first step in isolating the frozen shock bearing which was the main culprit of the noises

(and salt on the roads is a thing here)

 

Didn't know you were in the salt belt.

 

My first thought was your LCA bushings (notorious for clunks) but since you replaced those and sure they’re torqued to spec check out your sway links and bushings. I upgraded to moog parts.

 

I was actually thinking about unhooking the sway bar and going for a ride as a starting point...

 

Not a bad idea. I bought the poly bushings with zerc fitting links if you end up isolating it.

Was your frozen shock bearing squeaking or making clunks? I still haven’t isolated my clunk but it could be the LCA bushings doing their thing still.

 

Good idea.

 

squeaking...

fused solid. I put it in the vise and beat on a 3’ chro-mo rod with a crack hammer and it wouldn’t even budge.

 

Wow how the hell do they fuse like that, friction?

 

You can’t just unhook it. It will destroy the CV boot.

 

- the ‘o’ ring “seal” is for shit
- proly a lot of force/heat concentrated in a small area
- Water gets trapped inside the mounting gussets
- the ‘sphere’ leaves the race as it pivots and brings crud ‘inside’ the bearing

 

It didn’t when I had it off for awhile...

(ETA: you meant just unhook it and let it flail around like a meat grinder... gotcha. I’m dumb, but not quite that dumb)

 

There’s a huge difference between removed and just disconnected.

 

understood, my bad, ETA above

 

I had to do mine at 58k because the lower ball joints FAILED (on a parking lot queen.) Easier to replace than fuss with changing the ball joints on an item Toyota says to replace. Not as uncommon as I had hoped when I bought the truck.

 

My first thought; sway bar links. The BP-51 wasn't available when I went OME lift but the lift didn't include any relocation brackets for the sway bars. Mine are close but never any clinks.

 

I use my truck, but I don’t beat on it and I try to do the necessary maintenance...

this clunk is new.

 

my sway bar has spacers, but it’s gonna get a very close look

 

Everything I can think of looks tight, straight and in good condition up front.......


What clunks in the back?