My 1998 Toyota Avalon XL has rearend noise that can't be found. It sounds like a strut but have been replaced and makes no difference. It is a thumping on rough roads and semirough roads.

Google '98 avalon traction control sensor location'. Should list a you tube video.

It is really hard to say at this point. You are asking a question about a 2007 Dodge Caliber, posted under the heading of 1998 Toyota Avalon, and are making reference to a "suspension arm bushing", which could refer to probably at least 20 different parts of your suspension system.

This is in the realm of DIY but you will definitely need a spring compressor if this is in fact a strut-type assembly. The coil springs are under a great deal of tension and disassembling them without the compressor can be lethal. It is known that Toyota parts and service can be costly but if you intend on doing your own service, I highly recommend you invest ~$25 in a service manual for your car. These can be had on line:
Avalon Service manual
or at auto parts stores.

Same here... I have a 1998 Toyota Avalon XL. My car battery died. Replaced my car battery, but found out that when you unplug and plug the car battery with this car it engages in security mode (I have factory car alarm). This disables the engine and wont let you turn the ignition aka start the car engine until the remote (keyless entry) "UNLOCK" is applied. My remote is also lost so I cannot disable the alarm.
The only thing I can think of to do is unplug the battery again to disable everything (car alarms are annoying...) and call the dealer to pick the car up and perform the diagnosis. Most likely they will offer you another keyless (ugh... expensive) and/or you could ask to disable the factory car alarm.
I know thats not much help but it seems to be the only option from what I researched currently....

sounds like the top plate for the strut is bad, i beleive you may be able to just replace the plate and not the whole strut ,

Sounds like struts need replacing

A BEARING MAKES A GROWELING NOISE.
BRAKES WOULD MAKE THE NOISE WHEN APPLIED.
THUMPING MORE THE FASTER YOU GO, LIKELY A TIRE THAT IS SEPRATING.(NO LONGER ROUND)

upper nuts 36 lbs and the bottom two big ones are 145 lbs and the upper mount to body are 29 lbs. good luck man

You have worn out upper strut bearing support caps. This is the device that is on top of the struts, and hold the strut to the car. This is a very common issue. You will need to remove the struts, and have the strut coils compressed to remove the bearing support caps. Please do NOT try to compress the strut coils without the correct tool. You could get severly injured if you try this without a proper coil-spring compresser.

II have found over the years that a company called MONROE makes a very high quality strut (around $50 each) and have never had a problem with them, they come in a gas charged strut cartriage and this is what u want, there are others out there but many like BILSTIEN that ride really rough and cost around $100 each