Recent maintenance? Accelerating/Decelerating with/without brakes? Loose rocks on the offramp (Rocks hitting the inner wells can be loud) Any change in feeling in the steering/tracking of the car?
------------------------------------------------------------------ 1992 300ZX NA 5 Sp (Dead) 1990 300ZX NA Auto 2+2 (Dead) 1990 300ZX TT 5 Sp (Building) 2004 G35 Sport 6MT (DD)