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Ok I’ve owned several gas vehicles and I’m currently looking at a 96-F250 with a 7.3L diesel. I’ve come across something I’m not sure what it is and hope someone out there can give me a hand.
The truck is an automatic and as far I can tell it’s always been an auto, but in the cab there is a round threaded plug approx. 2 inches in diameter with about a 1.5 inch long by .5 inch square hex on top of the plug. This is where I would suspect the manual shifter would go, the carpet is trimmed around it. Is this normal in the 96 F250, of not anyone have a clue why it’s there?
If it was in the center of the transmission tunnel it would be a manual transmission shifter but why leave that in place when you can put a filler plate? Maybe your truck has or had an overdrive/underdrive unit or a PTO accessory.
Its closer to the center than the 4x4 shifter, I have a 94 F150 and the 4X4 shifter is in approx. the same place so I don’t think that was it. I not really sure where the manual comes thru the cab but I seems like that would be the place. I don’t know why it would be there though since it was a factory automatic.
What is the ” an overdrive/underdrive unit or a PTO accessory.”
The truck is at a dealer so who know where the original owner is, I’m trying to give it the once over (for about the 3rd time) to decide if I want to get it.
It was used as a construction vehicle of a little bit, maybe a year, it’s got an electric brake module and the hitch on the back as well. There are approx 100k on it. I know it’s at the point that it’s going to need several repairs, possibly an new tranny but it seems ok so right now. I’m just really puzzled by the plug in the cab.
PTO means Power Take Off. You can attach various accessories to the transmission like water pumps, hydraulic pumps, generators etc... The shifter is used to turn the accessory on or off. Most units now are electrically switched though. The overdrive/underdrive units attach behind the transmission to "split" or "multiply" your transmission gear ratios. That gives you either more torque (underdrive) or more fuel economy on the highway (overdrive). You didn't say if the plug moves or not. If it does not move like a shifter, another thing it could be is a pedestal mount for a computer or radio stack if the truck was a "service" truck.
That’s probably it, it would have to be really wrenched on to move it. I bet it was a pedestal mount for something; I’m going to see if they can send a picture of it and maybe I can post it then
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