GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2005
🢒
Optra
🢒
Transmission/Transaxle
🢒
Automatic Transmission - ZF 4HP 16
🢒 Transmission Gear Ratio
Gear
Ratio
First
2.719
Second
1.487
Third
1.000
Fourth
0.717
Reverse
2.529
Final - 1.8L
3.945:1