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I got my 1977 280Z out for the first time this year and when I accelerated from a stop a steel bar in the rear suspension broke. I'm not sure what the bar is called, maybe a trailer bar or sway bar or mustache bar or strut support? It is bolted to the frame/unibody in the center right behind the rear axle and connects to each side under the struts I believe. Any ideas of what it's called, how to get it off, and replace it? Thanks! Jeff J.

Ok so I am stumped on this one I have a bad creaking and groaning at low speeds when the right (passenger) rear suspension is unloaded and loaded. So far we have checked over all the bushing and they were replaced within the past 2 years from the paper work. They also all look new and the bolts are all marked was done professionally at Z Car Garage in San Jose by previous owner. We have replaced the rear wheel bearing and stub axle+lugs, repacked and torqued lock nut (280zx without peening) to 200ft/lbs. It was a PITA to get the old lock nut loose. We also did the u-joint in the half shaft. The only thing I can think of is something in the shock/spring. I was thinking of buying some new shocks all round for track days but don't want to spend the money if I don't have too. I have also read all the good and bad posts about riding on bump stops the lowering of the cars and not much travel and the problems with springs. I don't want to spend the money on coil overs at this point. But back to the problem any ideas what this noise could be? This noise sounds real bad not like the creaking of interior plastic or old car but more metallic and louder almost a worrisome groan which is why I have not driven the car the past few months. There is now noise at highway speed or driving straight just at low speeds and unloading/loading the suspension? Strut housing and A arm all look fine. So here is the breakdown: 1972 Datsun 240z Panasport 16 inch wheels New Diff mounts (done with previous owner at ZCarGarage) New bushing (done with previous owner at ZCarGarage) New diff rear seal and fluid New lugs and Torqued lug nuts Replaced stub axle New Rear Wheel Bearings (inner + outer + seal + lock nut) and all torqued up New u-joints on half shaft New cusco strut brace bars (noise was there before them) Any advice and help would be greatly appreciated especially from people with more experience in this area than me.