Leaf Springs

[slotracer]

My 67 S-Code GTA has 4 leaf springs and my 67 6cly. has 5 leaf, why does the GTA have 4 leaf and the 6 cly. have 5 leaf, seems like it should be the other way around, the GTA has the original springs in it.

[scrogg67]

thats strange, I just checked my GTA and you are right

[bartl]

It isn't necessarily the number of leaves as much as the arch and stiffness in each leaf. Many early Camaro's had monoleafs.

[dodgestang]

The simple answer is your 6cyl car had the springs replaced previously. They all had 4 leafs.

[22GT]

All 64-73 Mustangs had 4-leaf springs, from the little 64 170 coupe to the BOSS 429 NASCAR.

[slotracer]

If they all had 4 leaf, what is the spring rate difference from a 6 cly. to a V-8 car and how do you tell what you have?

[22GT]

Originally Posted by slotracer

If they all had 4 leaf, what is the spring rate difference from a 6 cly. to a V-8 car and how do you tell what you have?

Much less difference than front springs, something on the order of 610/650. The weight on the rear of the car was pretty much the same on V8 and I6.

Unless you can find a part number on them, you pretty much can't tell them apart.