Quote:
Originally Posted by leeklm
Often times we end up making these cars lighter with aluminum heads, intakes, removing AC, etc. End result is now the front springs are too stiff! That happened on my 73 GTO and ended up installing moog springs listed for a 6cyl car to level it back out
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RIDE HEIGHT can be achieved either of two ways.
Short, stiff springs, or
Tall, soft springs.
GM, Ford, Chrysler, AMC...pretty much every mass-market car--has springs that are too tall, and too soft. "6-cylinder" springs might even be worse. Mopar used to recommend 6-cylinder torsion bars for drag cars--soft spring rate, cranked-up at the adjuster to get ride height. Lots of stored energy in those springs for drag-race weight transfer.
Removing weight from the front makes the front end even higher because the tall-soft springs aren't compressed as far.
The real issue is the springs are not too stiff, they're too tall. In most cases, they're not stiff enough!
Short, stiff springs are exactly what street-driven older cars need. The trick is to get the ride-height you want using the right combination of stiffness and height on the springs.