Front Axle / Front Suspension: Avanti front springs

[swvalcon]

Plan to go though the front suspension on the Avanti this winter. I have a set of HD springs out of the buick wagon rear. Wondering if I should use them or just go back new stock. Anyone here use a set of HD's in their Avanti and if so how did you like it?

[Hawklover]

Steve back in Jan of 1967 when I purchased the first of numerous Avantis over the last 60 years I removed the front springs and put in HD springs and to gild the Lilly put in half inch spacers. Now as 2026 approaches I can honestly say the car still sits up perfectly in the front!

[StudeRich]

Yes it Sure does. The "Stance" Front Rear looks perfect as the correct ride height Cars were, BUT, the WAY too much Fenderwell showing above Both front and rear tires shows it is WAY too high.

[Gunslinger]

Stiffer coil springs in front and softer leaf springs in back will help shift the forward weight bias rearward somewhat and will improve handling.

[swvalcon]

was thinking of putting about 1" lowering blocks in the rear but will do the HD springs first and see how it looks and handles from there first.

[bezhawk]

When Herb Adams did the Avanti race car his school of though is soft springs, and stiffer shocks and anti roll bars. I agree. Too stiff a spring makes everyday driving a unpleasant experience. The last one I did, I used stock Lark six cyinder springs and even then, cut one turn from the length. Sits perfect, but might settle a little too much in the coming years. Even so, I have the stock AC spacers if that happens. I use Blistein shocks and Thiebault 1 " sway bars.