Rear Leaf Spring Specs:

The chart below lists the leaf spring specs for the Ford Explorer, Ranger, Bronco, and Bronco II.

Leaf Spring Eye Bolts:

9/16″ Grade 8

  • The 1991-2002 Ford Explorer and Explorer Sport uses 9/16″ x 4-1/2″ Grade 8 bolts in the front and rear hanger
  • The 2003-2006 Ford Explorer Sport Trac uses 9/16″ x 4-1/2″ Grade 8 bolts in the rear hanger
  • The 1986-2003 Ford Ranger uses 9/16″ x 4-1/2″ Grade 8 bolts in the front and rear hanger
  • The 2004-2011 Ford Ranger uses 9/16″ x 4-1/2″ Grade 8 bolts in the rear hanger
  • The 1983-1985 Ford Ranger uses 9/16″ x 4-1/2″ Grade 8 bolts in the front hanger
  • The 1984-1990 Ford Bronco II uses 9/16″ x 4-1/2″ Grade 8 bolts in the front and rear hanger
  • The 1978-1996 Ford Bronco uses 9/16″ x 5″ Grade 8 bolts in the rear spring hanger

5/8″ Grade 8

  • The 2003-2006 Ford Explorer Sport Trac uses 5/8″ x  4-1/2″ Grade 8 bolts in the front spring hanger
  • The 1983-1985 Ford Ranger uses 5/8″ x 4-1/2″ Grade 8 bolts in the rear spring hanger
  • The 2004-2011 Ford Ranger uses 5/8″ x 4-1/2″ Grade 8 bolts in the front spring hanger
  • The 1978-1986 Ford Bronco uses 5/8″ x 5″ Grade 8 bolts in the front spring hanger

 

Ford Explorer
 Ford Part #
 Description
1991-2001 Explorer 4DR (2wd & 4wd)

1991-2002 Explorer Sport (2wd &  4wd)

Rear Code U

F1TZ5560A

&

F17A5560DC

 2-1/2″ (W) x 25-11/16″ (S.E) x 30-15/16″ (L.E),  3/1, (4-Leafs)

Grading,  3/.360 1/.590,  Pack Thickness (1-7/8″)

(1,250 Lbs) Capacity Each Rear Leaf Spring, Arch  (4-13/16″)

Uses 9/16″ x 4 1/2″ Grade 8 Leaf Spring Eye Bolt Front and Rear
1995-2001 Explorer 4DR (2wd & 4wd)

1991-2002 Explorer Sport (2wd & 4wd)

Includes Mazda Navajo 2wd & 4wd

1997-2001 Mercury Mountaineer 2DR & 4DR (2wd & 4wd)

Rear Code F

F57Z5560A

&

F57A5560FD

 2-1/2″ (W) x 25-11/16″ (S.E) x 30-15/16″ (L.E),  3/1 (4-Leafs)

Grading, 2/.323, 1/.307, 1/.590,  Pack Thickness (1-3/4″)

(1,100 Lbs) Capacity Each Rear Leaf Spring,  Arch (6-1/2″)

Uses 9/16″ x 4-1/2″ Grade 8 Leaf Spring Eye Bolt Front and Rear

 
2001-2002 Explorer Sport Trac (2wd & 4wd)

1L5Z5560BA

&

1L545560BC

 2-1/2″ (W) x 25-3/4″ (S.E) x 31″ (L.E),  3/1,(4-Leafs)

Grading,  1/.341,  1/.307,  1/.291,  1/.590

(1200 Lbs) Capacity Each Rear Leaf Spring

Pack Thickness  (1-15/16″),  Arch  (8″)

Uses 9/16″ x 4-1/2″ Grade 8 Leaf Spring Eye Bolts Front and Rear
2003-2006 Explorer Sport Trac (2wd & 4wd)

4L2Z5560AA

&

4L245560BA

 2-1/2″ (W) x 25-3/4″ (S.E) x 31″ (L.E), 3/1, (4-Leafs)

Grading,  1Lv @.341,  1Lv @.307,  1Lv @.291,  1Lv @.590

(1200 Lbs) Capacity Each Rear Leaf Spring

Pack Thickness (1-15/16″),   Arch  (8″)

Uses 5/8″ x 4-1/2″ Grade 8 Leaf Spring Eye Bolts Front

Uses 9/16″ x 4-1/2″ Grade 8 Leaf Spring Eye Bolts Rear
Ford Ranger
 Ford Part #
 Description
1986-2003 Ranger (2wd & 4wd)

E3TZ5560G

&

E2TA5560CA

 2-1/2″ (W) x 25-5/8″ (S.E) x  31″ (L.E),  3/1 (4-Leaf)

Grading,  2Lvs @.307,  1Lv @.291,  1Lv @.558

Pack Thickness  (1-1/2″), Arch  (6″)

(1,250 Lbs) Capacity Each Rear Leaf Spring

Front and Rear Leaf Spring Eye Bushings Included

Uses 9/16″ x 4 1/2″ Grade 8  Leaf Spring Eye Bolts Front & Rear
1983-1985 Ranger (2wd & 4wd)

E4TZ-5560C

&

E47A-5560UA9

 2-1/2″ (W) x 25-5/8″ (S.E) x 31″ (L.E), 3/1,(4-Leafs)

Grading,  3/.323, 1/.590,  Pack Thickness  (1-9/16″)

(1,350 Lbs) Capacity Each Rear Leaf Spring,  Arch  (4-5/8″)

Uses 9/16″ x 4-1/2″ Grade 8 Leaf Spring Eye Bolt Front

Uses 5/8″ x 4-1/2″ Grade 8 Leaf Spring Eye Bolt Rear
1986-2003 Ranger (2wd & 4wd)

E6TZ5560M

&

E67A5560UB

 2-1/2″ (W) x 25-5/8″ (S.E) x 31″ (L.E), 3/1 (4-Leafs)

Pack Thickness  (1-9/16″),  Arch (4-3/8″)

Grading,  3Lvs @.291,   1Lv @.662

(1350 Lbs) Capacity Each Rear Leaf Spring

Uses 9/16″ x 4-1/2″ Grade 8 Leaf Spring Eye Bolts Front & Rear
1986-2003 Ranger (2wd & 4wd)

F37Z5560A

&

F37A5560BB

 2-1/2″ (W) x 25-11/16″ (S.E) x 30-15/16″ (L.E)  2/1 (3-Leafs)

Grading,  1/.323, 1/.341, 1/558

Pack Thickness  (1-3/8″), Arch (6-13/16″)

(1,110 Lbs) Capacity Each Rear Leaf Spring

Uses 9/16″ x 4-1/2″ Grade 8 Leaf Spring Eye Bolts Front & Rear
2004-2011 Ranger (2wd & 4wd)

4L5Z5560EB

&

4L545560EB

 2-1/2″ (W) x 25 3/4″ (S.E) x  31″ (L.E),  3/1 (4-Leafs)

Grading,  1Lv @.307,  2Lvs @.291,  1Lv @.558

Pack Thickness  (1-11/16″)

(1,200 Lbs) Capacity Each Rear Leaf Spring,  Arch  (6-1/8″)

Uses 5/8″ x 4-1/2″ Grade 8 Leaf Spring Eye Bolt Front Eyes

Uses 9/16″ x 4-1/2″ Grade 8 Leaf Spring Eye Bolt Rear Eyes
Ford Bronco, Bronco II
 Ford Part #
 Description
1978-1979 Bronco – Full Size

D8TZ5560B

&

D8TA5560DB

 3″ (W) x 24″ (S.E) x 31-1/2″ (L.E),  4/1, (5-Leafs)

Grading, 2/.291, 2/.262, 1/’625,  Pack Thickness, (1.78″)

(1,650 Lbs) Capacity Each Rear Leaf Spring,  Arch  (7-3/4″)

Uses 5/8″ x 5″ Grade 8 Leaf Spring Eye Bolt Front Eyes

Uses 9/16″ x 5″ Grade 8 Leaf Spring Eye Bolt Rear Eyes
1980-1996 Bronco – Full Size

EOTZ5560AD

&

EOTA5560AZC

 3″ (W) x 25″ (S.E) x 31″ (L.E),  4/1 (5-Leafs)

Grading,  2/.307, 2/.291, 1/.625

Arch (6-5/8″),  Pack Thickness  (1-7/8″)

(1,650 Lbs) Capacity Each Rear Leaf Spring

Uses 5/8″ x 5″ Grade 8 Leaf Spring Eye Bolt Front Eyes

Uses 9/16″ x 5″ Grade 8 Leaf Spring Eye Bolt Rear Eyes
1984-1990 Bronco II (2wd & 4wd)

E6TZ5560F

&

E67A5560JA

 2-1/2″ (W) x 25-3/4″ (S.E) x 30-7/8″ (L.E),  (5-Leafs)

Grading,  1Lv @.323, 1Lv @.262,   3Lvs @.249

Pack Thickness  (1-3/8″), Arch  (6-5/8″)

(1,020 Lbs) Capacity Each Rear Leaf Spring

Uses 9/16″ x 4-1/2″ Grade 8 Leaf Spring Eye Bolts Front and Rear

 

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