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FCS 342780 Shock Absorber - Rear

Brand	FCS 342780
Position	Rear
Compressed Length	12.28
Extended Length	20
Stroke Length	7.72
Product line	FCS
Fits	Jeep, International, Ford, AM General, Chevrolet, and GMC · 166 vehicles

Shock absorber. Helps control suspension movement for a smoother ride.

Compressed, extended, and stroke lengths are specified for easier matching.

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Shock Absorbers are typically replaced in pairs, axle by axle.

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Rear Shock Absorber for Jeep and Ford Applications

FCS 342780 is a rear suspension shock absorber built for a wide range of classic Jeep, Ford, Chevrolet, and GMC trucks, vans, and SUVs. With a 12.28-inch compressed length, 20-inch extended length, and 7.72-inch stroke, it is sized for rear suspension travel on many leaf-spring applications.

Key Features

Rear suspension shock absorber for classic truck and SUV applications
Compressed length: 12.28 inches
Extended length: 20 inches
Stroke length: 7.72 inches
Compatible with rear fitments on Jeep CJ5, CJ7, Cherokee, Wagoneer, Grand Wagoneer, Scrambler, J10, and J20
Also fits select Ford F-100, F-250, F-350, Bronco, E-100 Econoline, Chevrolet Blazer, and GMC Jimmy/van applications
FCS part number 342780 for rear suspension service

Fitment Details

Fits 1984-1991 Jeep Grand Wagoneer, rear.
Fits 1974-1988 Jeep J10, rear.
Fits 1974-1988 Jeep J20, rear.
Fits 1976-1986 Jeep CJ7, rear.
Fits 1981-1985 Jeep Scrambler, rear.
Fits 1976-1983 Jeep Cherokee, rear.
Fits 1972-1983 Jeep CJ5, rear.
Fits 1976-1983 Jeep Wagoneer, rear.
Fits 1975-1979 Ford F-250, rear.
Fits 1965-1969 Ford F-250, rear.
Fits 1967-1979 Ford F-350, rear.
Fits 1966-1977 Ford Bronco, rear.
Fits 1969-1974 Ford E-100 Econoline, rear.
Fits 1969-1972 Chevrolet Blazer, rear.
Fits 1970-1972 GMC Jimmy, rear, with leaf springs.
Fits 1959-1971 Jeep CJ5, rear, except with 5 leaf front springs.
Fits 1967-1970 GMC G15/G1500 Van, rear.
Fits 1967-1970 GMC G25/G2500 Van, rear.
Fits 1965-1969 Ford F-100, rear.

What This Shock Absorber Helps Address

Excessive rear-end bounce over rough pavement
Reduced control from worn rear shocks
Unstable ride quality on leaf-spring rear suspensions
Rear suspension noise caused by degraded damping performance
Uneven handling response in older Jeep and Ford chassis

Installation Notes

Verify compressed length, extended length, and stroke length against the vehicle’s rear suspension travel before installation. Confirm the exact year, model, and rear suspension configuration, especially on applications with leaf-spring notes such as the GMC Jimmy and the 1959-1971 Jeep CJ5 exception. FCS 342780 is a rear-position shock absorber and should be matched to the vehicle’s original mounting and travel requirements.

Quality Assurance

FCS supplies suspension components for replacement service across a broad range of classic vehicle applications. Part number 342780 is cataloged for rear shock absorber use on multiple Jeep, Ford, Chevrolet, and GMC models, including Jeep CJ5, Ford Bronco, and Ford F-250 rear applications.

This part fits 166 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Body Type	Drive Type	Position	Notes
1991	Jeep	Grand Wagoneer	—	—	Rear	FCS
1990	Jeep	Grand Wagoneer	—	—	Rear	FCS
1989	Jeep	Grand Wagoneer	—	—	Rear	FCS
1988	Jeep	Grand Wagoneer	—	—	Rear	FCS
1988	Jeep	J10	—	—	Rear	FCS
1988	Jeep	J20	—	—	Rear	FCS
1987	Jeep	Grand Wagoneer	—	—	Rear	FCS
1987	Jeep	J10	—	—	Rear	FCS
1987	Jeep	J20	—	—	Rear	FCS
1986	Jeep	CJ7	—	—	Rear	FCS
1986	Jeep	Grand Wagoneer	—	—	Rear	FCS
1986	Jeep	J10	—	—	Rear	FCS
1986	Jeep	J20	—	—	Rear	FCS
1985	Jeep	CJ7	—	—	Rear	FCS
1985	Jeep	Grand Wagoneer	—	—	Rear	FCS
1985	Jeep	J10	—	—	Rear	FCS
1985	Jeep	J20	—	—	Rear	FCS
1985	Jeep	Scrambler	—	—	Rear	FCS
1984	Jeep	CJ7	—	—	Rear	FCS
1984	Jeep	Grand Wagoneer	—	—	Rear	FCS
1984	Jeep	J10	—	—	Rear	FCS
1984	Jeep	J20	—	—	Rear	FCS
1984	Jeep	Scrambler	—	—	Rear	FCS
1983	Jeep	Cherokee	—	—	Rear	FCS
1983	Jeep	CJ5	—	—	Rear	FCS
1983	Jeep	CJ7	—	—	Rear	FCS
1983	Jeep	J10	—	—	Rear	FCS
1983	Jeep	J20	—	—	Rear	FCS
1983	Jeep	Scrambler	—	—	Rear	FCS
1983	Jeep	Wagoneer	—	—	Rear	FCS
1982	Jeep	Cherokee	—	—	Rear	FCS
1982	Jeep	CJ5	—	—	Rear	FCS
1982	Jeep	CJ7	—	—	Rear	FCS
1982	Jeep	J10	—	—	Rear	FCS
1982	Jeep	J20	—	—	Rear	FCS
1982	Jeep	Scrambler	—	—	Rear	FCS
1982	Jeep	Wagoneer	—	—	Rear	FCS
1981	Jeep	Cherokee	—	—	Rear	FCS
1981	Jeep	CJ5	—	—	Rear	FCS
1981	Jeep	CJ7	—	—	Rear	FCS
1981	Jeep	J10	—	—	Rear	FCS
1981	Jeep	J20	—	—	Rear	FCS
1981	Jeep	Scrambler	—	—	Rear	FCS
1981	Jeep	Wagoneer	—	—	Rear	FCS
1980	Jeep	Cherokee	—	—	Rear	FCS
1980	Jeep	CJ5	—	—	Rear	FCS
1980	Jeep	CJ7	—	—	Rear	FCS
1980	Jeep	J10	—	—	Rear	FCS
1980	Jeep	J20	—	—	Rear	FCS
1980	Jeep	Wagoneer	—	—	Rear	FCS
1979	Ford	F-250	Crew Cab Pickup	RWD	Rear	FCS
1979	Ford	F-350	Standard Cab Pickup	—	Rear	FCS
1979	Ford	F-350	Extended Cab Pickup	—	Rear	FCS
1979	Ford	F-350	Cab & Chassis	—	Rear	FCS
1979	Jeep	Cherokee	—	—	Rear	FCS
1979	Jeep	CJ5	—	—	Rear	FCS
1979	Jeep	CJ7	—	—	Rear	FCS
1979	Jeep	J10	—	—	Rear	FCS
1979	Jeep	J20	—	—	Rear	FCS
1979	Jeep	Wagoneer	—	—	Rear	FCS
1978	Ford	F-250	Crew Cab Pickup	RWD	Rear	FCS
1978	Ford	F-350	Standard Cab Pickup	—	Rear	FCS
1978	Ford	F-350	Extended Cab Pickup	—	Rear	FCS
1978	Ford	F-350	Cab & Chassis	—	Rear	FCS
1978	Jeep	Cherokee	—	—	Rear	FCS
1978	Jeep	CJ5	—	—	Rear	FCS
1978	Jeep	CJ7	—	—	Rear	FCS
1978	Jeep	J10	—	—	Rear	FCS
1978	Jeep	J20	—	—	Rear	FCS
1978	Jeep	Wagoneer	—	—	Rear	FCS
1977	Ford	Bronco	—	—	Rear	FCS
1977	Ford	F-250	Crew Cab Pickup	RWD	Rear	FCS
1977	Ford	F-350	Standard Cab Pickup	—	Rear	FCS
1977	Ford	F-350	Extended Cab Pickup	—	Rear	FCS
1977	Ford	F-350	Cab & Chassis	—	Rear	FCS
1977	Jeep	Cherokee	—	—	Rear	FCS
1977	Jeep	CJ5	—	—	Rear	FCS
1977	Jeep	CJ7	—	—	Rear	FCS
1977	Jeep	J10	—	—	Rear	FCS
1977	Jeep	J20	—	—	Rear	FCS
1977	Jeep	Wagoneer	—	—	Rear	FCS
1976	Ford	Bronco	—	—	Rear	FCS
1976	Ford	F-250	Crew Cab Pickup	RWD	Rear	FCS
1976	Ford	F-350	Standard Cab Pickup	—	Rear	FCS
1976	Ford	F-350	Extended Cab Pickup	—	Rear	FCS
1976	Ford	F-350	Cab & Chassis	—	Rear	FCS
1976	Jeep	Cherokee	—	—	Rear	FCS
1976	Jeep	CJ5	—	—	Rear	FCS
1976	Jeep	CJ7	—	—	Rear	FCS
1976	Jeep	J10	—	—	Rear	FCS
1976	Jeep	J20	—	—	Rear	FCS
1976	Jeep	Wagoneer	—	—	Rear	FCS
1975	Ford	Bronco	—	—	Rear	FCS
1975	Ford	F-250	Crew Cab Pickup	RWD	Rear	FCS
1975	Ford	F-350	Standard Cab Pickup	—	Rear	FCS
1975	Ford	F-350	Extended Cab Pickup	—	Rear	FCS
1975	Ford	F-350	Cab & Chassis	—	Rear	FCS
1975	Jeep	CJ5	—	—	Rear	FCS
1975	Jeep	J10	—	—	Rear	FCS
1975	Jeep	J20	—	—	Rear	FCS
1974	Ford	Bronco	—	—	Rear	FCS
1974	Ford	E-100 Econoline	—	—	Rear	FCS
1974	Ford	F-350	Standard Cab Pickup	RWD	Rear	FCS
1974	Jeep	CJ5	—	—	Rear	FCS
1974	Jeep	J10	—	—	Rear	FCS
1974	Jeep	J20	—	—	Rear	FCS
1973	Ford	Bronco	—	—	Rear	FCS
1973	Ford	E-100 Econoline	—	—	Rear	FCS
1973	Ford	F-350	—	RWD	Rear	FCS
1973	Jeep	CJ5	—	—	Rear	FCS
1972	Chevrolet	Blazer	—	RWD	Rear	FCS
1972	Ford	Bronco	—	—	Rear	FCS
1972	Ford	E-100 Econoline	—	—	Rear	FCS
1972	Ford	F-350	—	RWD	Rear	FCS
1972	GMC	Jimmy	—	RWD	Rear	With Leaf Springs; FCS
1972	Jeep	CJ5	—	—	Rear	FCS
1971	Chevrolet	Blazer	—	RWD	Rear	FCS
1971	Ford	Bronco	—	—	Rear	FCS
1971	Ford	E-100 Econoline	—	—	Rear	FCS
1971	Ford	F-350	—	RWD	Rear	FCS
1971	GMC	Jimmy	—	RWD	Rear	With Leaf Springs; FCS
1971	Jeep	CJ5	—	—	Rear	(Exc. w/ 5 Leaf Front Springs); FCS
1970	Chevrolet	Blazer	—	RWD	Rear	FCS
1970	Ford	Bronco	—	—	Rear	FCS
1970	Ford	E-100 Econoline	—	—	Rear	FCS
1970	Ford	F-350	—	RWD	Rear	FCS
1970	GMC	G15/G1500 Van	—	—	Rear	FCS
1970	GMC	G25/G2500 Van	—	—	Rear	FCS
1970	GMC	Jimmy	—	RWD	Rear	With Leaf Springs; FCS
1970	Jeep	CJ5	—	—	Rear	(Exc. w/ 5 Leaf Front Springs); FCS
1969	Chevrolet	Blazer	—	RWD	Rear	FCS
1969	Ford	Bronco	—	—	Rear	FCS
1969	Ford	E-100 Econoline	—	—	Rear	FCS
1969	Ford	F-100	—	RWD	Rear	FCS
1969	Ford	F-250	—	RWD	Rear	FCS
1969	Ford	F-350	—	RWD	Rear	FCS
1969	GMC	G15/G1500 Van	—	—	Rear	FCS
1969	GMC	G25/G2500 Van	—	—	Rear	FCS
1969	Jeep	CJ5	—	—	Rear	(Exc. w/ 5 Leaf Front Springs); FCS
1968	Ford	Bronco	—	—	Rear	FCS
1968	Ford	F-100	—	RWD	Rear	FCS
1968	Ford	F-250	—	RWD	Rear	FCS
1968	Ford	F-350	—	RWD	Rear	FCS
1968	GMC	G15/G1500 Van	—	—	Rear	FCS
1968	GMC	G25/G2500 Van	—	—	Rear	FCS
1968	Jeep	CJ5	—	—	Rear	(Exc. w/ 5 Leaf Front Springs); FCS
1967	Ford	Bronco	—	—	Rear	FCS
1967	Ford	F-100	—	RWD	Rear	FCS
1967	Ford	F-250	—	RWD	Rear	FCS
1967	Ford	F-350	—	RWD	Rear	FCS
1967	GMC	G15/G1500 Van	—	—	Rear	FCS
1967	GMC	G25/G2500 Van	—	—	Rear	FCS
1967	Jeep	CJ5	—	—	Rear	(Exc. w/ 5 Leaf Front Springs); FCS
1966	Ford	Bronco	—	—	Rear	FCS
1966	Ford	F-100	—	RWD	Rear	FCS
1966	Ford	F-250	—	RWD	Rear	FCS
1966	Jeep	CJ5	—	—	Rear	(Exc. w/ 5 Leaf Front Springs); FCS
1965	Ford	F-100	—	RWD	Rear	FCS
1965	Ford	F-250	—	RWD	Rear	FCS
1965	Jeep	CJ5	—	—	Rear	(Exc. w/ 5 Leaf Front Springs); FCS
1964	Jeep	CJ5	—	—	Rear	(Exc. w/ 5 Leaf Front Springs); FCS
1963	Jeep	CJ5	—	—	Rear	(Exc. w/ 5 Leaf Front Springs); FCS
1962	Jeep	CJ5	—	—	Rear	(Exc. w/ 5 Leaf Front Springs); FCS
1961	Jeep	CJ5	—	—	Rear	(Exc. w/ 5 Leaf Front Springs); FCS
1960	Jeep	CJ5	—	—	Rear	(Exc. w/ 5 Leaf Front Springs); FCS
1959	Jeep	CJ5	—	—	Rear	(Exc. w/ 5 Leaf Front Springs); FCS
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