Technical Tips > Brakes, Suspensions, Steering, Wheels & Tyres

Fibreglass Leaf Springs vs Standard Steel Springs for C3

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69CVET:
Hi Guys

Next Project is a New Leaf Spring , being doing some reading and want to get some feedback on Fibreglass vs Steel
Obviously steel is much cheaper ( and of course standard in the earlier models before 1980 ? ) But who has fibreglass and what's your thoughts and experiences with the upgrade in the C3  ? - pic attached is some prices I seen with Corvette Central ( maybe cheaper local ? )
Cheers Chris

bfit:
I have run a 330 fiberglass spring  and found it to light and changed to a 360 .
If you decide to go fiberglass  concider getting the shorter spring you can get 1/2" or 1" a side shorter

The 1/2" a side will be better with standard wheels and modern tyres you will benefit  from the  extra clearance

You will need good shocks
Only use Bilstein  sports, the others brands are crap on a C3 .

I buy all this sort of equipment from Vansteel if you want a contact there for a good price PM me
Bfit

MY081:
I agree with Bfit i have the fiberglass spring and have no issues . There worth the money just for the weight saveing (the steel springs weigh a ton )

MY081:
O there is one thing , you will need longer drop bolts much longer .

Scott:
I bought my glass spring from VBandP.  As previously stated, get one that's shorter to help with big wheel clearance.  Bolt length may need to be addressed once the new spring is in.

Shipping would be a killer though, so add some shocks, suspension bushes and anything else you need in to the order as well.

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