Rear Suspension ID - Impala Tech
Brakes & Suspension Conversion Questions & more

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post #1 of 3 (permalink) Old 01-16-2018, 12:34 PM Thread Starter
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Rear Suspension ID

Is there a way to quickly/visually ID what rear suspension my '68 convertible has? I'm trying to determine if it is an R41 or not. Thanks in advance.
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post #2 of 3 (permalink) Old 01-16-2018, 12:59 PM
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Visually they appear the same. The difference is the valving inside the shocks, and the spring rate (pounds per inch) of the coil springs. Your BBC car will have a front sway bar with the F41 being larger in diameter than the stock one. There will also be a rear sway bar that is unique to the F41 suspension option.

Big Dave
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post #3 of 3 (permalink) Old 01-17-2018, 10:49 AM
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Its F41 not R41. The standard suspension has no rear sway bar and a 11/16 dia front sway bar. The F41 has a rear sway bar mounted to the rear lower control arms and a 15/16 dia front sway bar.
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