Ford B, F and L-Series Rear Leaf Spring | 14 Leaves | 13,000 lbs. Capacity

SKU 43-377

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$386.95
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Product Specifications

  • Length (A): 29-3/4 Inches
  • Length (B):29-3/4 Inches
  • Width:3 Inches
  • Location:Rear
  • View more
  • 2 In Stock
  • In Stock Orders received before 1pm EST Monday - Friday are shipped same day!

Product Specs for Leaf Springs 43-377

  • Length (A): 29-3/4 Inches
  • Length (B):29-3/4 Inches
  • Width:3 Inches
  • Location:Rear
  • Number of Leaves:14
  • Application:Ford
  • SRI Number:43-377
  • OEM Number:F2HZ5560L, F2HT5560LA
  • Arc (C):6-7/8 Inches
  • Pack Thickness (D):6-5/8 Inches
  • Capacity:13,000 lbs.
  • Front Bushing:None
  • Rear Bushing:None
  • Spring Construction:12/447 PD/360 RR 2/447
  • MPN: 43-377
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Leaf Springs 43-377 Details

Vehicle Applications:

  • 1963-79 B500, B600, B700 and B750
  • 1980-99 B600 and B700 with cast brackets
  • 1963-79 F500, F600, F700, F750, F800 and F880
  • 1980-99 F600, F700, and F800 with cast brackets
  • 1970-95 L, LN, LS, LL, LA, LLA and LLS 500/900

Leaf Springs Important Role

Your leaf springs are one of the most important parts of your trucks suspension. If your leaf springs are shot or showing fatigue from old age, it is recommended to change them both out at the same time. If you only change one leaf spring, it is common that your truck will lean toward the side with the older leaf spring. If you purchase one leaf spring and decided to replace the other one at a later date, you may receive a spring from another manufacturer as we source our springs from multiple manufacturers. It is recommend to replace them in pairs to guarantee a match.

Replacing your leaf springs with a high quality OEM leaf spring from Michigan Truck Spring will help improve your ride in the following ways:

  • Less bounce, which means more solid contact with the road and therefore longer tire life.
  • Driver comfort is greatly improved.
  • Your payload sits tight, significantly reducing cargo damage.
  • Smoother ride and less bottoming out.
  • Safety! Your truck will handle better which means it's safer.

All the leaf springs at TruckSpring.com are made to or exceed OEM quality:

  • Made from SAE 5160 Steel, Same as OEM leaf springs.
  • All raw steel is manufactured by steel mills that use the continuous cast (Stran-cast) process, same as OEM leaf springs.
  • Each leaf from the leaf springs is shot peened to specific intensity and coverage.
  • Each leaf spring is coated to prevent corrosion and rust.

If you have any questions about how to identify the correct leaf spring for your vehicle or need bolts or other replacement parts, call us at 1-800-358-4751.

Vehicle Application Guide for Leaf Springs 43-377

The 43-377 Ford B, F and L-Series Rear Leaf Spring | 14 Leaves | 13,000 lbs. Capacity is engineered to work with specific vehicles displayed below. Can't find your vehicle, or need assistance, please give us a call at 1-800-358-4751 or 1-989-755-0561. Browse the category Ford Radius Leaf Type Springs - 59 Inches , Rear - 59 Inch Springs , Rear Single Axle - Main Springs , Truck Springs - Semi Truck & Trailer , with Cast Spring Brackets , to view all vehicle makes and models.

YearMakeModelVehicle OptionInstallation Notes
1975 Ford F-500
1976 Ford F-500
1977 Ford F-500
1980 Ford F-600Fits models with cast brackets only.
1980 Ford F-700Fits models with cast brackets only.
1980 Ford F-800Fits models with cast brackets only.
1981 Ford F-600Fits models with cast brackets only.
1982 Ford F-600Fits models with cast brackets only.
1983 Ford F-600Fits models with cast brackets only.
1984 Ford F-600Fits models with cast brackets only.
1985 Ford F-600Fits models with cast brackets only.
1986 Ford F-600Fits models with cast brackets only.
1987 Ford F-600Fits models with cast brackets only.
1988 Ford F-600Fits models with cast brackets only.
1989 Ford F-600Fits models with cast brackets only.
1990 Ford F-600Fits models with cast brackets only.
1991 Ford F-600Fits models with cast brackets only.
1992 Ford F-600Fits models with cast brackets only.
1993 Ford F-600Fits models with cast brackets only.
1994 Ford F-600Fits models with cast brackets only.
1981 Ford F-700Fits models with cast brackets only.
1982 Ford F-700Fits models with cast brackets only.
1983 Ford F-700Fits models with cast brackets only.
1984 Ford F-700Fits models with cast brackets only.
1985 Ford F-700Fits models with cast brackets only.
1986 Ford F-700Fits models with cast brackets only.
1987 Ford F-700Fits models with cast brackets only.
1988 Ford F-700Fits models with cast brackets only.
1989 Ford F-700Fits models with cast brackets only.
1990 Ford F-700Fits models with cast brackets only.
1991 Ford F-700Fits models with cast brackets only.
1992 Ford F-700Fits models with cast brackets only.
1993 Ford F-700Fits models with cast brackets only.
1994 Ford F-700Fits models with cast brackets only.
1995 Ford F-700Fits models with cast brackets only.
1996 Ford F-700Fits models with cast brackets only.
1997 Ford F-700Fits models with cast brackets only.
1998 Ford F-700Fits models with cast brackets only.
1999 Ford F-800Fits models with cast brackets only.
1998 Ford F-800Fits models with cast brackets only.
1997 Ford F-800Fits models with cast brackets only.
1996 Ford F-800Fits models with cast brackets only.
1995 Ford F-800Fits models with cast brackets only.
1994 Ford F-800Fits models with cast brackets only.
1993 Ford F-800Fits models with cast brackets only.
1992 Ford F-800Fits models with cast brackets only.
1991 Ford F-800Fits models with cast brackets only.
1990 Ford F-800Fits models with cast brackets only.
1989 Ford F-800Fits models with cast brackets only.
1988 Ford F-800Fits models with cast brackets only.
1987 Ford F-800Fits models with cast brackets only.
1986 Ford F-800Fits models with cast brackets only.
1985 Ford F-800Fits models with cast brackets only.
1984 Ford F-800Fits models with cast brackets only.
1983 Ford F-800Fits models with cast brackets only.
1982 Ford F-800Fits models with cast brackets only.
1981 Ford F-800Fits models with cast brackets only.
1980 Ford L800
1981 Ford L800
1982 Ford L800
1983 Ford L800
1984 Ford L800
1985 Ford L800
1980 Ford B-600Fits models with cast brackets only.
1980 Ford B-700Fits models with cast brackets only.
1981 Ford B-600Fits models with cast brackets only.
1981 Ford B-700Fits models with cast brackets only.
1982 Ford B-600Fits models with cast brackets only.
1982 Ford B-700Fits models with cast brackets only.
1983 Ford B-600Fits models with cast brackets only.
1983 Ford B-700Fits models with cast brackets only.
1984 Ford B-600Fits models with cast brackets only.
1984 Ford B-700Fits models with cast brackets only.
1985 Ford B-600Fits models with cast brackets only.
1985 Ford B-700Fits models with cast brackets only.
1986 Ford B-600Fits models with cast brackets only.
1986 Ford B-700Fits models with cast brackets only.
1987 Ford B-600Fits models with cast brackets only.
1987 Ford B-700Fits models with cast brackets only.
1988 Ford B-600Fits models with cast brackets only.
1988 Ford B-700Fits models with cast brackets only.
1989 Ford B-600Fits models with cast brackets only.
1980 Ford LN600
1980 Ford LN700
1980 Ford LN800
1981 Ford LN600
1982 Ford LN600
1983 Ford LN600
1984 Ford LN600
1985 Ford LN600
1981 Ford LN700
1982 Ford LN700
1983 Ford LN700
1984 Ford LN700
1985 Ford LN700
1981 Ford LN800
1982 Ford LN800
1983 Ford LN800
1984 Ford LN800
1985 Ford LN800
1990 Ford B-600Fits models with cast brackets only.
1991 Ford B-600Fits models with cast brackets only.
1992 Ford B-600Fits models with cast brackets only.
1993 Ford B-600Fits models with cast brackets only.
1994 Ford B-600Fits models with cast brackets only.
1990 Ford B-700Fits models with cast brackets only.
1991 Ford B-700Fits models with cast brackets only.
1992 Ford B-700Fits models with cast brackets only.
1993 Ford B-700Fits models with cast brackets only.
1994 Ford B-700Fits models with cast brackets only.
1970 Ford F-600
1971 Ford F-600
1972 Ford F-600
1973 Ford F-600
1974 Ford F-600
1975 Ford F-600
1976 Ford F-600
1977 Ford F-600
1978 Ford F-600
1979 Ford F-600
1970 Ford F-700
1973 Ford F-700
1974 Ford F-700
1975 Ford F-700
1976 Ford F-700
1977 Ford F-700
1978 Ford F-700
1979 Ford F-700
1971 Ford F-700
1972 Ford F-700
1981 Ford LN900
1986 Ford LN700

Customer Q&A - Leaf Springs 43-377


Leaf Springs

At TruckSpring / Michigan Truck Spring, we obtain our leaf springs from various sources throughout the world. All of the manufacturers that we represent produce leaf springs that are as good as or better quality than OEM springs.

Virtually no vehicle manufacturer actually manufactures their own leaf springs. Like many other truck components, leaf springs are purchased from companies specializing in supplying parts to truck manufacturers. The springs we sell have the same or better quality as OEM springs and many times are purchased from the same manufacturer.

Leaf Springs Warranty

1 Year Limited Warranty

On all leaf springs.

What the warranty does not cover

Damage from accidents, corrosion, improper installation, incorrect applications, overloading, and custom applications that are not specified under the OEM cross references. This warranty does not cover loss of freight, loss of profit, equipment, or personal downtime. Any alteration of products will void the warranty. Warranty is void if new u-bolts are not installed when the new leaf spring is installed. Using existing u-bolts is a common cause for leaf spring breakage and failure.

How to get service

If a leaf spring failure results from a manufacturer defect, contact us at Michigan Truck Spring for support. You can contact us by phone at 1-800-358-4751 or by using our contact form.

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