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alhbln

Rear sway bars on a '72 240Z?

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Got the sway bar bushing kit from blackdragon and noticed that my '72 240Z does not seem to have any in the rear. Is this a speciality of the model year or should it be there in any case and has been removed at some point?

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The rear sway bar didn't become standard until the 1975 280Z model. (in the U.S.) I'm not sure how that compares to other markets.

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Let me me draw a little finer line on the date the rear sway bar became standard equipment, just to make it clear for the guys with a '74. It was the '74.5 model that it became standard in the US & Canada and also changed shape. prior to this they were available from the parts counter at the dealer or from aftermarket suppliers. To avoid fitment problems for your '72, be sure to use one shaped like the one shown in this pic.

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Let me me draw a little finer line on the date the rear sway bar became standard equipment, just to make it clear for the guys with a '74. It was the '74.5 model that it became standard in the US & Canada and also changed shape. prior to this they were available from the parts counter at the dealer or from aftermarket suppliers. To avoid fitment problems for your '72, be sure to use one shaped like the one shown in this pic.

Strange, my '73 came with a factory rear swaybar. Brackets are spot welded to the frame rails in front of the swingarms. I guess it was owner installed by a PO.

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alhbln, you can send the leftover to me in Denmark :D

Chris

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Strange, my '73 came with a factory rear swaybar. Brackets are spot welded to the frame rails in front of the swingarms. I guess it was owner installed by a PO.

I don't have any first hand knowledge but I remember it being discussed before where cars were shipped with the brackets welded on, but no bar installed. Maybe someone will know more about that.

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Let me me draw a little finer line on the date the rear sway bar became standard equipment, just to make it clear for the guys with a '74. It was the '74.5 model that it became standard in the US & Canada and also changed shape. prior to this they were available from the parts counter at the dealer or from aftermarket suppliers. To avoid fitment problems for your '72, be sure to use one shaped like the one shown in this pic.
I should have added an 'AFAIK' to my post. I always forget about that 74.5 model which was basically a 280Z with an L26 instead of an L28E.

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That's interesting. My 71 now has a BRE setup. It looks completely different than the bars above.

I guess I could have been more specific also. Aftermarket bars are another story and were designed for use with your car Randy. I was pointing out the Nissan styled stock and performance catalog bars which are shaped like the ones shown in my pics and illustration.

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That makes awhole lot of sense Ron. I guess I went off on a tangent there.:stupid:

A good tangent that clarified the thread and pointed out that some aftermarket bars can be designed and shaped differently and fit/work well.

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When I installed the BRE set-up back in '72, IIRC I had to drill holes to mount the hardware to hold the bar. I don't remember there being any pre-drilled holes, but there could have been....:confused:

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In the USA, 1973 and some very late 1972 240Zs had the anti-roll bar brackets welded onto the rear subframe on the chassis but no anti-roll bar installed from the factory. Sometime during the 1974 260Z model run the anti-roll bars got installed.

The BRE/Mulholland/Suspension Techniques kit pictures above is an aftermarket setup that positions the anti-roll bar behind the diff. This is generally a better design especially if your car is lowered more then 2". The factory rear anti-roll bar position can bind at the end links and/or hit the subframe on heavily lowered S30s. Notching the subframe and modifying the end links (going to rod ends) can solve these problems.

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These are not my pictures, they were sent to me so I appologize in advance for not giving credit where credit is due. In case anyone is interested, this is how the aftermarket setup looks installed.

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Strange, my '73 came with a factory rear swaybar. Brackets are spot welded to the frame rails in front of the swingarms. I guess it was owner installed by a PO.

I have a late '73 build date 8/73 and it has the brackets also. I just looked for a early '74 for a bar. They have a sway bar that is not straight where it crosses past the Diff. the later '74 and those after are straight and will not clear. I just used the OEM rubber on mine. All the end links are the same. I use rubber only because of the road noise with the Polly. To the best of my knowledge the '74 was the first to have a rear Sway bar , at least in the U.S. Gary

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My 73 has a stock suspension, with recent struts. I only drive it on the street, but I'm not happy with the way it leans when cornering. Since I have the mountings, I'm now considering putting on a rear sway bar. Any thoughts on whether it'll make much difference? It seems like an easier and cheaper option than upgrading the springs and struts, and I'm only looking for a little improvement anyway...

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I had to add the rear sway bar to my 72 240Z. Mine had no brackets but there is

a mounting hole in the tranverse link. I installed the MSA sway bars in front and back.

I don't have much road experience due to no door hardware or windshield.

Seats get installed today.

Not just a Z - ZDisease

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My 70' came to me with the Aftermarket kit already installed but it had rubber so I replaced them with Urethane and urethane end links. Just improving on the improvements.

My Early 74' (2/74') came with what appears to be a Stock rear sway bar with the usual rubber equipment.

Where do I get the front Urethane brackets for my 25mm upgrade for the 260Z?? Anyone?

first are the 240Z and the second 2 are the 260Z

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Edited by Zs-ondabrain

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My 73 has a stock suspension, with recent struts. I only drive it on the street, but I'm not happy with the way it leans when cornering. Since I have the mountings, I'm now considering putting on a rear sway bar. Any thoughts on whether it'll make much difference? It seems like an easier and cheaper option than upgrading the springs and struts, and I'm only looking for a little improvement anyway...

A 19mm rear bar will work wonders when coupled with the front sway bar. You might want to think about apgrading the front to a 23 or 25mm while you're at it. And Please use the Urethenae Bushings when you do the upgrade(s). You won't be sorry.

Dave.

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Thanks Dave. I'll try the rear bar. I'm a little worried about upgrading the front, as I've read other threads where they say putting too big of sway bars on these old cars can cause the frame to separate, unless you reinforce it.

Matt

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These are not my pictures, they were sent to me so I appologize in advance for not giving credit where credit is due. In case anyone is interested, this is how the aftermarket setup looks installed.

Actually, that is how the ST setup looks installed. The MSA kit does not include the new transverse link mounts with provisions for the sway bar.

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