Reading through my old 4x4 mags and came acrossed a guy that had used carbon fiber springs in the rear of his YJ in a double wishbone configuration and fiberglass springs in the fronts. Anyways I was wondering if anyone knew anything about composite springs? Good idea or not and why. How about compsite coil springs, if there is such a thing.

I just have a hard time believing that if you grind fiberglass springs across rocks that they'll hold up.

Corvettes have composite and fiberglass type springs. Leve them on there :p

FWIW--What I've read about composite springs:

Good:
They flex good because there is no friction from leafs rubbing on one another (as they do in traditional leaf springs).

MUCH lighter than traditional steel leaf springs

Much longer fatigue life than traditional springs (won't sag over time)


Bad:
More expensive than traditional steel springs

Easily damaged by contact with rocks

Prone to failure at the ends where a spring eye must be attached to the leaf

Originally posted by Jakesteramalamajama
FWIW--What I've read about composite springs:

Good:
They flex good because there is no friction from leafs rubbing on one another (as they do in traditional leaf springs).

MUCH lighter than traditional steel leaf springs

Much longer fatigue life than traditional springs (won't sag over time)


Bad:
More expensive than traditional steel springs

Easily damaged by contact with rocks

Prone to failure at the ends where a spring eye must be attached to the leaf

Making it a sucky choice for our applications.

If you could have composite coils they would be ok since they wouldn't contact any rocks, right.