i bought a set of these Z1 upper arms as well with the solid joints when they came out, did the install myself. rode them for a while and as others stated noticed a creeking in the suspension on certain bumps and pops every now and then. Then i got the letter about the bolt issue and had nissan do the replacement when it got in. Update it doesn't pop anymore but i do get an occasional creek. I will be replacing these out with the SPL arms as well. I'm big on paying for what you get. But the drivabilty of the Z1 arms always has me worried on the back burner so I'll make the switch soon.
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Fast Intentions stage 2 TT kit| Specialty Z clutch kit|FI 34 Row oil cooler|Fast 500E fuel return |Aquamist Methanol kit|3.3 Quaife diff|Ported Manifolds|Poly mounts|Defi 3 gauge cluster swap| 3in Motordyne x-pipe Catback |4100Nex|JL XD1000/5v2 |Fx165 Focal|JL 10w3v3|
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