F41 Suspension for '66 L 72?

[John L.]

I own a '66 L-72, how does one tell if the car came equipped with F41 suspension? It currently has standard 9 leaf spring and replacement shocks. Thanks

[Michael J.]

Re: F41 Suspension for '66 L 72?

The front sway bar should be 15/16" in diameter if F41, 7/8" on standard BB suspension.

[Richard M.]

Re: F41 Suspension for '66 L 72?

John, Check these in addition to the front sway bar.....

Front Springs: How many coils and what is the wire diameter. F41 -> 7 coils(non-progressive). Std -> 12 coils(progressive).

Rear Lower Shock/Strut mounts: What are the part#'s cast on them? If xxxxx65-66(# faces sky) -> F41, if xxxx029 left, xxxx030 right -> Std

Rear spindles(if originals): Remove road wheels and identify if the outer faces of the center outward facing hub circles have any unique casting features or are they flat faced.

Rich