Toyota Differential Codes

The following is a table of Toyota differential codes. These codes are applicable to all Toyota models and years. You will find this code on the VIN plate in your car, typically on the firewall.

The code is comprised of four digits. The first digit is a letter that represents the ring gear diameter. The second and third digits are numbers that represent the differential ratio (Number of driveshaft rotations for each axel rotation). Lastly the fourth digit is also a number that represents the number of pinion gears and whether or not the unit is equipped with limited slip.

Examples

T382	=	6.7" Ring Gear @ 3.417:1 ratio, 2 pinions w/o LSD
F293	=	7.5" Ring Gear @ 4.10:1 ratio, 2 pinions w/ LSD
F303	=	7.5" Ring Gear @ 3.727:1 ratio, 2 pinions w/ LSD

 

Differential Codes

First Digit	Second/Third Digit	Fourth Digit
Ring Size	R&P Ratio	Pinions/LSD
A = 138mm B = 145mm C = 6.25" D = 6.62" E = 7.1" F = 7.5" G = 8" H = 9" J = 9.25" K = 9.5" L = 10.5" M = 12.5" N = 13.5" P = 14" R = 162mm S = 6.38" T = 6.7" U = 6" V = 10.6" W = 15.5" X = 142mm Y = 158mm	01 = 3.30 02 = 3.36 03 = 3.545 04 = 3.556 05 = 3.70 06 = 3.889 07 = 3.90 08 = 4.111 09 = 4.222 10 = 4.375 11 = 4.444 12 = 4.625 13 = 4.79 14 = 4.875 15 = 5.125 16 = 5.286 17 = 5.60 18 = 5.714 19 = 5.833 20 = 6.167 21 = 6.667 22 = 6.78 23 = 6.833 24 = 7.64 25 = 4.556 26 = 5.571 27 = 3.364 28 = 4.30 29 = 4.10 30 = 3.727 31 = 3.909 32 = 6.591 or 5.583 33 = 7.503 or 5.583 34 = 6.781 or 4.786 35 = 7.636 or 5.60 36 = 4.778 37 = 3.583 38 = 3.417	2 = 2/no LSD 3 = 2/LSD 4 = 4/no LSD 5 = 4/LSD