Formula S (HD) Leaf Springs

The A-Body Guy said
Hello -

Does anyone know how many different leaf springs were used on Formula S (HD) cars from 1967-1969 and or if certain part numbers are better / worse?

I recently found out about at least two:

1967 - Six leaves both sides. Galvanized inter-liners. Both have the same last three digits 056.

1968 - Six leaves both sides. Plastic inter-liners. Both have the same last three digits 132.

I physically have both of these and they appear identical on the cars. My guess is ‘Ma MOPAR’ wanted to save money, switched to plastic and changed the part number.

Thanks in advance.

PMW

I have 3 Formula S Fastback Barracudas. I've pulled the Numbers from the original rear springs.

1966 Formula S, 4 speed = 2403804 both sides

1967 Formula S, 4 speed = 2835024 both sides

1968 Formula S, Automatic = 2835056 both sides

I also have MOPAR replacement springs for a 71 340 Duster, 4 speed = 3722133 both sides