3 leaf vs 4 leaf

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Joined
Dec 10, 2017
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Location
Georgia
My Car
1973 Mach 1 "Q Code"
I am changing out my leaf springs for new stock height Eaton springs. I noticed during the install that my old ones only have 3 leafs ( layers) and the new ones have 4. What came stock with a 73 Mach 1 with 351C?
Also, my new ones both have an "L " on them, I did not think that leaf springs were side specific. And and all advice is appreciated. Thanks.

Tom
 
Joined
Sep 30, 2010
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Mustang, OK.
My Car
1972 Mach 1 Q code
2007 GT
1969 Cougar Eliminator B302
CSX 7000 Shelby Cobra FIA
2020 Edge ST
2002 F250 V10
Four layers. No left or right, obviously front and rear of springs. Call Eaton about the "L".
 
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