MOOG Chassis Products CS578 front coil spring set for the 1975-1981 Chevrolet Impala and other vehicles carries the front suspension load and absorbs road bumps. It replaces a front spring that has sagged or worn out.
- Design enhancements that extend product life
- 100% load tested
- Easy to install
- Intended to provide like-new steering
- Designed to lower stresses for longer service life
Quick facts
- Part: MOOG Chassis Products CS578 coil spring set
- Fits: the 1975-1981 Chevrolet Impala and other vehicles
- Position: Front
- Condition: New
A sagging front spring can show up as a lower ride height or as tires that wear early because the car sits out of alignment. Before you replace the springs, rule out worn shocks, struts or ball joints, since they can also change how the car sits and handles.
Fits
This front coil spring set also suits the 1975 Chevrolet Malibu, the 1992-1996 Buick Roadmaster and many other vehicles. If your car is not named here, find its year, make and model in the "Vehicles it fits" section. The fitment calls for one per side of the front axle; this listing is one, and the other side is normally done at the same time.
Specifications
Fit and size
- Position: Front
- Quantity per application: 1
- Free height: 444.5 mm (17.5 in)
- Outside diameter: 5.480 in
- Inside diameter: 103.63 mm (4.08 in)
- Wire diameter: 17.86 mm (0.7 in)
- Spring rate: 357 lbs per inch
Build and materials
- End 1 type: Squared
- End 2 type: Tangential
- Condition: New
- Country of origin: United States
Interchange: 566-175 · 92-0578 · 277-1430 · 585-1007 · 831-578
45H0007 · 1362322 · 1364006 · 1376270 · 370995 · 390374 · 390375 · 391895 · 3988105 · 3988115 · 462509 · 9773641 · 4112186 · FCS430 · FCS430S · FCS578S · SMS578 · U578S · SP08199 · 110401 · JCS1573T
This part cross-references / interchanges with the following part numbers:
45H0007, 566-175, 1362322, 1364006, 1376270, 370995, 390374, 390375, 391895, 3988105, 3988115, 462509, 9773641, 4112186, 92-0578, FCS430, FCS430S, FCS578S, SMS578, U578S, 277-1430, SP08199, 585-1007, 110401, 831-578, CS578, JCS1573T
Frequently Asked Questions
Is this the right Impala coil spring for the 1975-1981 Chevrolet Impala?
Yes. MOOG Chassis Products CS578 is a front coil spring set listed for the 1975-1981 Chevrolet Impala.
What spring rate and free height does this front coil spring set have?
This front coil spring set has a spring rate of 357 lbs per inch and a free height of 444.5 mm (17.5 in). The wire diameter is 17.86 mm (0.7 in).
How can I tell if my front coil springs are sagging?
Signs can include a lower front ride height, uneven tire wear, or a cracked or broken coil you can see with the car parked. A shop can inspect the springs and the parts around them.
Are the ends of this coil spring set squared or tangential?
One end is squared and the other end is tangential. The coil has a 103.63 mm (4.08 in) inside diameter and a 5.480 in outside diameter.
Does MOOG CS578 interchange with part number 566-175?
Yes. 566-175 is listed as an interchange number for MOOG Chassis Products CS578. The Interchange line at the bottom of the page lists the other numbers it replaces.
