The axle ratio code is stamped on the Vehicle Rating Plate located on the rear face of left door on all model except Bronco. On Bronco models plate is located on the inside panel of glove box door. Models with Spicer (Dana) rear axles have an additional tag bolted to drive axle that contains drive axle ratio code. Code designations are as follows:

REAR AXLE RATIO IDENTIFICATION (FORD) CONVENTIONAL DIFFERENTIALS

Code	Ratio
07, 17	2.47:1
01, 13	2.75:1
02, 14, 32 Sp.	3.00:1
04, 15	3.25:1
25 Sp.	3.33:1
16	3.50:1
37 Sp.	3.54:1
36 Sp., 38 Sp., 46 Sp.	3.73:1
27 Sp., 31 Sp., 47 Sp.	4.10:1

LOCKING DIFFERENTIALS

Code	Ratio
A7, H7	2.47:1
A1, C2 Sp., H4, 32 Sp.	3.00:1
B2 Sp., 22 Sp.	3.07:1
A4, H5	3.25:1
C3 Sp., 23 Sp.	3.31:1
B5 Sp.	3.33:1
B7 Sp., C7 Sp., 41 Sp.	3.54:1
C6 Sp., D6 Sp., 42 Sp. 51 Sp.	3.73:1
C1 Sp., D3 Sp., D7 Sp., E2 Sp., 43 Sp., 52 Sp., 62 Sp.	4.10:1
28 Sp., 44 Sp., 53 Sp.	4.56:1

FRONT AXLE RATIO IDENTIFICATION

Code	Ratio
CE, CF, CH, AA, AB, AC, AG, CA, CB, FA, FB, FC, FF, GA, GC, YA, YD	3.00:1
EE, EF, EH, VE, VF, VH, EA, EB, HA, HC, KA, KB, KC, KF, AAB	3.50:1
JE, JF, JG, NE, NF, NG, ZE, ZF, ZG, ACA, ACB, ACC, MA, NA, RA, RB, RF, SA, SB, SF, TA, TE, UA, UD, AAD	3.54:1
ABD, ABE, ABF, LA, LB, LF	4.10:1

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Axle Ratio Identification: Ford

Use the Manual With the Right Hardware

When to See a Mechanic