Here all the parts that I bought to swap out oe suspension without having to take it apart with Tein Basic suspension. Saves time its recommended to replace the rubber bushings and upper mounts if you have over 40k on them.

INSULATOR ASSY-STRUT MOUNTING - 350Z (Z33) 2003-2006, 2007 HR
54320-Z33002
Qty: 2

[54034] SEAT-RUBBER,FRONT SPRING - 350Z (Z33) 2003-2007
54034-Z33001
Qty: 2

[56217] BUSH-REAR SHOCK ABSORBER - 350Z (Z33) 2003-2006
56217-Z33002
Qty: 2

[55338] SEAL-SHOCK ABSORBER MOUNTING - 350Z (Z33) 2003-2007
55338-Z33001
Qty: 2

[56218] BUSH-REAR SHOCK ABSORBER - 350Z (Z33) 2003-2007
56218-Z33001
Qty: 2

[55036+A] SEAT-RUBBER,REAR SPRING - 350Z (Z33) 2003-2007
55036-Z33001
Qty: 2

[55036] SEAT-RUBBER,REAR SPRING - 350Z (Z33) 2003-2007
55050-Z33001
Qty: 2

[55323] TUBE-DISTANCE,SHOCK ABSORBER MOUNTING - 350Z (Z33) 2003-2006
55323-Z33001
Qty: 2

[55322] BRACKET ASSY-SHOCK ABSORBER MOUNTING - 350Z (Z33) 2003-2007
55322-Z33001
Qty: 2

 

i just bought a low mileage used suspension, it even came with the rear spring mounts, those parts new can cost quite a bit.