C3 sway bars

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Feb 8, 2016 | 10:59 AM

409/409

Thread Starter

Pro

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From: Cincinnati Ohio

C3 sway bars

What are the correct sizes for the front and rear sway bars on a 1975 convertible with gymkana suspension???
Thanks

Feb 8, 2016 | 12:16 PM

MelWff

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with the FE7 suspension front bar is 1 1/8" the rear 7/16"
https://www.corvetteforum.com/forums...uspension.html

Feb 8, 2016 | 01:07 PM

409/409

Thread Starter

Pro

Joined: Aug 2013

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From: Cincinnati Ohio

My front bar is 1 1/8" and the rear is 1/2". My original dealer invoice shows gymkana suspension. 1975 L-82 4 speed convertible. I've seen 7/16" and 9/16" and the 1/2" bar seems original to the car. What application would a 1/2" bar be for?

Feb 8, 2016 | 02:05 PM

Rotonda

Burning Brakes

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From: Rotonda FL

Quote:

Originally Posted by 409/409

I have not seen anywhere that GM supplied a 1/2' bar on any C3. Might it be the 7/16 bar being measured on a twist or curve? The difference is only .06 inches.

What is the decimal diameter across a flat part of the bar?

Feb 8, 2016 | 02:17 PM

409/409

Thread Starter

Pro

Joined: Aug 2013

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From: Cincinnati Ohio

I don't know the decimal diameter but a 7/16 open end wrench will not fit on it and a half inch is a hair too big.

Feb 8, 2016 | 02:35 PM

redvetracr

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there were only two "factory" rear bars, 7/16 & 9/16

Feb 8, 2016 | 04:12 PM

409/409

Thread Starter

Pro

Joined: Aug 2013

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From: Cincinnati Ohio

Someone in the C2section told me there was a 5/8 inch bar for the rear of F40 suspension on a C2. What combination of bar sizes go with what option codes? Thanks

Feb 8, 2016 | 04:18 PM

409/409

Thread Starter

Pro

Joined: Aug 2013

Posts: 633

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From: Cincinnati Ohio

Also, my C2 has a 9/16 rear bar and a 9/16 open end wrench fits on it perfectly. A 7/16 open end won't go on my 1975 rear bar at all and a half inch will with very slight clearance.