833 od or non?

I have a 75 I think all iron case 833 here, a body tail housing. Can somebody tell me by the vin what it was? I’m looking for a 74-5 318, non OD 833 so I can put the low gear guts in my street strip ride for et gain. Thanks in advance

Unless you know the thing has not been modified why don’t you just check the gear ratios on the bench.

Put a mark on the input shaft and throw out bearing collar and a front drive shaft yoke and mark it and the tail shaft, put it in 1st gear and rotate the input shaft and count the revolution it takes to make the drive shaft yoke one full revolution
Same thing for any gear you want to know the ratio, a 2.66 low gear should rotate 2 full revolutions and a little more than 1/2 revolution
The over drive trannys in O.D. gear will rotate 1 1/4 full turns, if I'm remembering correctly

"G" is the plant code for St. Louis which built Dodge Dart/Plymouth Valiant cars from '73-'76. I believe 6-cylinder cars got the non-OD trans and V-8's got the OD.

I agree, why not just shift into 1st gear and count the turns?

I did that and it's 3.09 1st. My confusion is in 3,4th and with the lever needing to be up or down with a od and non. One gear is 1:1 and the other turns the output around 1.35 ish. So I must be a OD unit? Disregarding the lever orientation that's what I get when turning the input 1 turn

On the non-OD both levers are up, on the OD the front lever is down...this is because OD is located where 3rd is on the non-OD. OD is .73-1.

If you want the 3.09 gears in a non-OD, you can also find them in the '64-'65 /6 and 273 trans.

Any time you get the output to turn faster than the input you have an overdrive condition.

So yes, you have an OD unit.

Yes sir, I am aware of those also and am looking, thanks

Thanks, I was trying to make it what I wanted and pretty much knew the result, just needed clarification.

my brother had a 76 dart that had a /6 and what we called the : "three speed 4 speed", aka the overdrive transmission.
so yes, the /6 did indeed get the od transmission. at least in model year 76.

OD was available with a Slant.