at what speed does over drive kick in
you answered it yourself, a 4 speed with overdrive
standard (shift gear) 5 speed Automatic 4 speed
It can come with either a Getrag manual 5 speed, or an automatic 4 speed with overdrive
4T65-E 4-speed automatic transmission
6-speed automatic. Technically 5 speed with overdrive
No.
The Z24 has overdrive, the base models are 3 speed autos
No it is not Overdrive is the top gear that has a higher ration than 1 to 1. So if you have a 4 speed automatic with overdrive, then 4th is not overdrive. Overdrive is beyond 4th.
4l60e 4 speed with 5 speed automatic overdrive
definitely the 6-speed
No over drive. It only has a 3 speed automatic.
The first one is faster