Anyone have good luck with the USPS finding their lost auto parts in the system?

hemi71x said
My latest purchase for some parts has also come back to bite me in the ***.
Wondering if anyone out there has filed a search with the USPS, and has good or bad luck, with them finding the parts.
Here's what's now going on.
I purchased a pair of calipers from a guy in Georgia.
Packaged them up in a large, USPS flat rate box.
Evidently the calipers were recent take off's from the donor car.
Somewhere in transit the box must have really been tossed around.
I think upside down, as all the brake fluid that was still in the calipers, leaked out, and soaked the box with brake fluid,
and contaminated the box, making the cardboard soft, and weak, causing the calipers to fall out.
All that i got from the USPS from the West Sacramento, distribution center, is the contaminated, brake soaked, shipping label that was on the box.
NO CALIPERS.
Filed a claim for lost items, but they naturally can't tell me where in the system, the calipers came out of the box.
I'm wondering if the box had the calipers in it, since what was left of it, must have got to the West Sacramento, distribution center.
Do you think i just have to chalk this up to a loss, or keep my fingers crossed that they can find the parts?
I really can't blame the USPS, as it's not their fault in the improper packaging.
The package was not insured for any loss or damage.
Who woulda thunk it, that residue brake fluid in the calipers would leak out.
Well thank's for reading, and possibly your thoughts.
Jim V.
hemi71x

There is no guarantee that a box shipped via USPS will remain in any specific orientation during shipping. Also in the drop off process at the PO one of the questions is, does the package contain a liquid….?
Anyone selling car brake parts should know that calipers contain residual brake fluid. The seller should have taken a moment to open the bleeders, fully compress the piston on each caliper, close the bleeders, cap the hose connection end and then seal the calipers in a plastic bag. That is not too much to expect of anyone.
Your issue is with the person that sold and packaged the calipers.
The parts exited the box, maybe anywhere along the destination trail.
I think the seller owes you a refund. But if that is not happening, try sending a photo of the calipers to the PO that received the parts for shipment and to the last PO that handled the box before delivery and see if they will forward the photos to destinations/stops the package made along the way. Maybe someone saw the calipers somewhere.
But again, if someone packages a part so poorly that the part exits the packaging during shipment, the fault is with the person that did the packaging.