But this button was on automatics or manuals?I've seen this kind of overdrive on automatics, but not on manuals.
I imagine you could run it as an 8 or 10 gear.
I've heard the engines won't last 50K km if you live close to a freeway. They need to be warned up before running them hard or they'll break...then you put in a Ford 5.0. The overdrive was bolted on the back of the transmission so I imagine you could run it as an 8 or 10 gear.Steve
Electric? It is electric in the sense that you push a button that is a contact switch which flips a relay which provides power to close a solenoid which allows fluid pressure to engage a conical clutch in a mechanical overdrive unit that is separate from the transmission.I hate the overdrive system, ODs are weak, complicated, take more fluid, have electrical gremlins in the wires in the tranny tunnel as well as the switch and relay, and are just a nasty system to aviod using a proper 5 speed box, which volvo finnally did in europe in 94 wiht the M90.I am very gentle on my OD manual, and use the clutch going into and out of OD, but it is not quite as tight as it used to be and I am guessing that it is pretty near death.