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Rear Suspension - IRS?
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restcon
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Joined: October 26, 2020
Posts: 35
Location: Columbus Ohio
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PostPosted: Mon Oct 18, 2021 4:47 am    Post subject: Rear Suspension - IRS? Reply with quote

Is the rear suspension on a 74 Thing and independent suspension?

Are there torsion bars and what do they do?
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TDCTDI
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Joined: August 31, 2013
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PostPosted: Mon Oct 18, 2021 7:15 am    Post subject: Re: Rear Suspension - IRS? Reply with quote

Yes, your 74 has IRS & yes, it has torsion bars. Torsion bars are the springs that hold your vehicle up.
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KAmes
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PostPosted: Mon Oct 18, 2021 5:47 pm    Post subject: Re: Rear Suspension - IRS? Reply with quote

Torsion bars are inside the tube at the pivot where the rear suspension moves. There is a separate one for left and right sides, hence independent. The end near the center of the car is fixed in place, while the outer end pictured is attached to the moving part of the suspension. The bar twists as the suspension compresses and then springs back.
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Wildthings
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PostPosted: Tue Oct 19, 2021 1:38 am    Post subject: Re: Rear Suspension - IRS? Reply with quote

On a rear engine VW IRS refers to a suspension system using CV joints verses one using swing axles. Both setups are actually independent rear systems
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