Did my mechanic lie to me?

Rusty

The cabin air filter should be looked at once a year.

The other issues are common. The diff bushing is a royal pita. It's about a day and a half job. I've done 3 of them. If you were closer. I'll do it for a couple of hundred. If they replace it with oem. They replace the whole sub-frame. You can buy aftermarket bushings.

Poly bushings. $99.99

https://www.z1motorsports.com/z1-pro...t-p-10356.html

Solid bushings. $179.00

https://www.splparts.com/products/37...-bushings.html

I have the solid bushings in my Z.

__________________

浪人 - 殺し屋
"The Difficult Anytime, The Impossible By Appointment Only"
http://www.the370z.com/members-370z-...o-journal.html

nis350

that may explain the high estimate??

Tractionless

The rear subframe at Courtesy Nissan is only $1,034, I get cabin filters for $8, and the valve cover gasket is $40 including the spark plug hole unit at Nisssan. So no you're being killed by labor and parts markup to the tune of $4,318!!

I HIGHLY recommend finding a mechanic specializing in Z's and getting the bushings swapped and valve cover gasket done. You'll probably save at least the labor value above!
You can do the cabin filter easily via youtube vids as they're designed to be serviced.

__________________
Toys Not Tots