Change struts 1999 nissan maxima - 1999 Nissan Maxima

Question edited for clarity.
Question moved to model category.

Front Struts

https://www.google.com/search?q=2009+Nissan+Maxima+front+struts

Rear Struts

https://www.google.com/search?q=2009+Nissan+Maxima+rear+struts

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If it goes into other gears correctly, then the issue is likely a synchromesh problem with that particular gear, and the gearbox may have to be stripped.
You may try changing the gear oil first though, as this can often fix the issue without having to spend too much money on unnecessary repairs.

rear suspension mc pherson type dampers and if iam not mistaken you will need spring compressors to change them .

struts

its actually a shock with a strut like assembly strut cartridge top and shock mount on the bottom I guess its a mutt...

No, usually struts come without springs. Some aftermakets are available as complete assembly with strut, sping, and mount. This is the best way to buy if you doing them yourself. A little more expensive but you are replacing everything and will not have to take them to a shop to have spings changed over. I would not attempt to do this yourself even with rented sping compressor because it is extreamly dagerous. Strut spings can kill you, play it safe. Good Luck

i would return the car to the shop that changed the struts. either a sensor got left unplugged, or possibly a cable got damaged in the job. either way, best place to start is by going back to where the struts were changed. they can scan for codes and go from there. good luck!

i would check stabilizer bushings and/or links

try driving around for a bit and if they dont go down then yes change them out the return valve is probably just stuck

you have mcphereson struts not shocks, you will need new struts, labor plus alignment, Struts will run about $130 each, labor about $100 per side, alignment about $65.00 - about $ 500 .00 bill for total job...