1976 Dodge Mobile Traveler transmission - how many gears?

The 318 was a good engine in its time although a little small in displacement and IMO, very under powered for your application. As previously mentioned, 3 on the tree is all you get. You could change the differential ratio to lower the revs per mile and save a little fuel under some conditions but, that would make it even slower out of the hole. It needs the revs to make sufficient power for highway cruising.

Chum lee

Just like the old Turbo 400s in GMs. 3's all ya gots. :B If you =do= want an overdrive, bet you could add a GearVendor OD. Would also come in =real= handy if you plan on towing anything, as they actually let you split the gears when in manual mode, so you end up with 6 ratios. Had one in an old truck, and it worked great hauling heavy stuff around, even with a 4.10 rearend.

Lyle

Read as much as you desire to...

https://www.allpar.com/mopar/transmissions/torqueflite-tom-hand.html

Guys, thanks for the clarifications so far. So here is some more detail.

The gearshift indicator has the standard PRND21. What I was describing was starting out in Drive and accelerating and noting when I could feel the transmission shifting. So the gear the transmission starts out in from a dead stop I am calling 1st gear (unrelated to what is shown on the gear shift indicator). Then at about 15 MPH I can feel the transmission shift into what I am calling 2nd gear. Then at about 25 MPH I can feel it shift again into what I am calling 3rd gear. It stays in that gear all the way up to 60 MPH, around which I would think the transmission would shift into some kind of overdrive gear, if it has one. My concern is that if the tranny has some kind of overdrive gear that is supposed to kick in at highway speeds, and it isn't doing it, my gas mileage will suffer severely. But if it doesn't have one and only has the 3 gears I have described, it is operating normally.
Your thoughts?

That should be the old Dodge workhorse 727 three speed automatic transmission.

zerxyx wrote:
When I get up to higher speeds, it seems like there should be one more gear (like an overdrive gear), but it does shift into one. Either it doesn't have one, or it isn't shifting into it. Any thoughts?

You said it seems like there should be one more gear but, it does shift into one. Then you said it isn't shifting into one.
Do you mean it does NOT shift into a higher gear?

I'm guessing you have a three speed automatic transmisson. What is on the gearshift indicator?

3 speed is all she has. There were aftermarket over drives, and you can now see why they were popular.