Quote Originally Posted by oldmanhal View Post
So it looks like we can use any vss pulse sensor. 4k, 8k, 16 k , 128k vss. Yes must be gm compatible thread to your trans/t case. It's all about your numbers you put into your ecm program setup. I did find the higher the pulse rate the more accurate pulses per mile becomes thus the more accurate your Speed.20240401_083609.jpgometer.
I think a 4K VSS is a very poor option because the Speed Pulse Per Rev number will be extremely low. The 8K VSS already has a low Speed Pulse Per Rev number and is likely the lowest cost option too.