Transmission and drivetrain fluid levels

[Chetzki]

I checked my manual transmission and differential housing oil levels, but is there another fluid level to check in the transmission? My Hayne's manual prompts me to check the "overdrive unit fluid level" by removing a square-head plug on the left side of the overdrive unit. I can't find this plug. I have a ZF6 manual transmission - maybe this section is for another manual unit?

Want to make sure I'm not missing something!

Thanks,
Chetzki

 

[Ken]

The ZF doesn't have an external overdrive, but the Doug Nash 4+3 did. You have no overdrive unit to check fluid level.

 

[Chetzki]

Thanks Ken! You're the man!
Chetzki