Gear rings(synchronizer) both for OEM and aftermarket. Reference OEM numbers:
Toyota:
33367-40011
33367-40012  
3336720012
33367-20013
33367-14010
33367-26021
33367-26022
33367-26023
33367-36030
33367-12020
33369-12012
33367-36040
33368-36040
33367-35030
33367-35040
Suzuki:
24431-72143
24431-74031
24431-74034
24431-72141
24431-74030
24431-72140
24431-83000-1
24432-83000-1
24432 -60A 00
24431-60B00
24431-60B10
24431-82140
24431-82040
Nissan:
24431-63B20
24431-84041
32604-H7300
32604-18000
32604-H1000
32604-H9000
32604-E9801
32604-H1001
32607-86402
32604-T8000
32607-58S00
32607-58S10
32607-58S80
32607-58S60
Daewoo:
90305939
90305938
90304685
90304686
Isuzu:
9-33265-632-0
9-33265-633-0
9-33265-610-0
8-94463-830-0
9-33265-620-0
8-94312-718-0
8-94128-776-0
8-94128-775-0
8-94151-510-0
Mazda:
K71E-17-265A
G401-17-265
K71E-17-245A
F401-17-265
W501-17-725A
KKB30-17-265
KKB3A-17-265A
Mitsubishi
ME-601845
ME-610458
ME-600803
ME-601295
43383-45000
ME-657494
43374-45000
Skoda:
115-210360
115-210361
Fiat:
4572869
4572859
4158513
Hillman:
5220875
Ford:
7082936
Kia:
KKB30-17-625
KKB30-17-245
KKB30-17-265A
KKB3A-17-265A
Hyundai:
43384-4A 000
43384-4B000
43384-48000
43374-34000
43386-4B000
Hino:
33371-1431
33371-1421
Lada:
2141-1701169
Volkswagen:
014-311-295D
014-311 -295F
020-311-247
014-311-295E
Dahaitsu
33369-87302-000
33368-87501-000
33367-87502-000
33367-87601-000
33368-87601-000
33367 -87706A
Opel:
718904
Volga:
24-1701164-02
24-1701179-02
Renault:
7700708152
1428756800