So posted a thread awhile ago about these wierd squeaking I had been getting over bumps and uneven roads

it's a 2006 with 93,000 miles and Nissan just quoted me ~$2,400 to replace the rear and front control arm bushings.

This price seems utterly crazy but both my usual mechanics both won't do it. I don't have a lift nor a hydraulic press so I'm also out of the question.

What will happen if I put it off awhile longer? Is there any serious concern other than the squeaking noise?

 

2400? They better be gold plated. Look at rockauto or amazon and just buy new control arms they will come with bushings already installed you can even get a complete kit from amazon for under 300 with all the front control arms and end links. Onto your actual question, I would think at 93k miles your bushings are probably tired but that doesn’t mean they are trashed and you could probably put it off. However you might just jack the car up with the tire jack and take the wheel off and see what bushings are bad and just replace the individual components

 

They are going to replace the rear spindle? and the front arms, no normal shop will replace bushings you need a performance shop for that. The parts needed for it in dealer terms are probably around $1600 or so, so the price checks out.