A833 Overdrive on 493 stroker?

[shone190]

Hi guys,

   what do you think about A833 overdrive trans with aluminium housing, bolted on 493 stroker (525HP/590ftlbs) in 1973 Charger?

This will be weekend/holiday car, no drag races off course

Will it hold this power or not?

Thanks in advance.

[1974dodgecharger]

sure if it was rebuilt....the A833 is one tough tranny, but don't rebuilt an engine and not look over the A833 or it will blow up.

[don duick]

I was told they are NOT a strong box. Try asking ask Rick Eringburg at the moparaction site.

[c00nhunterjoe]

Nothing was designed for that kind of power from the factory. Odds are though, that you wont be able to utilize that power on the street... ie- traction. If you are running standard radials then i doubt it will break. Thrash it on stickies then i wouldnt be surprised if it breaks.

[Cooter]

Tryin not to break balls here.....BUT. who the hell wants 650 ft. Lbs. Of torque with a 3.09 first gear?
also, making a statement like "no drag racing, just cruising" and building a 493 stroker kinda cancels itself out. We all know you didn't build that much engine for fuel mileage. Yes, it will live for a little while, but aluminum case trannies are not forgiving when it comes to side loading of gears.
If the OD is all your after, I guess a WIDE ratio OD trans would work...however, remember, when in OD YOU ARE ACTUALLY IN 3RD GEAR AT 70 plus MPH.

[Cooter]

I was told they are NOT a strong box. Try asking ask Rick Eringburg at the moparaction site.

You are correct. They are not. ( aluminum ones).

[shone190]

If the OD is all your after, I guess a WIDE ratio OD trans would work...however, remember, when in OD YOU ARE ACTUALLY IN 3RD GEAR AT 70 plus MPH.

I didn't understand this part, what do you mean? 

[XH29N0G]

The way the 70's OD 4 speeds worked was to flip 3rd for 4th.  4th is 1:1,  the gears on 3rd were swapped around to make it an OD.  That is why the shift linkage tab on the transmissions were flipped (so 3rd would become 4th and 4th would become 3rd).  This was a clever solution for low power vehicles, but not designed for a high power set up.    I had one on a 383 and it worked well.  I have swapped to a 5 speed (OD) since the engine was rebuilt and have been glad that I did.

[Troy]

If the OD is all your after, I guess a WIDE ratio OD trans would work...however, remember, when in OD YOU ARE ACTUALLY IN 3RD GEAR AT 70 plus MPH.

I didn't understand this part, what do you mean? 

In order to make an OD transmission without building something from scratch, Chrysler used the regular 833 and left 4th gear as the 1:1 ratio (now 3rd gear) and made 3rd into the OD 4th gear. On the outside, this meant that the 3-4 lever had to be flipped but otherwise it bolted in pretty much the same. The downside is that in 1:1 the whole transmission is "locked out" (all gears spinning together) but in OD all gears are engaged. This adds friction and wear since the highest gear typically gets the most use. It's also not a great idea to apply max power in OD for the same reason - you're in a weaker state.

Troy

[Cooter]

If the OD is all your after, I guess a WIDE ratio OD trans would work...however, remember, when in OD YOU ARE ACTUALLY IN 3RD GEAR AT 70 plus MPH.

I didn't understand this part, what do you mean? 

It appears to be shifted normally, but 3rd and 4th shift lever is reversed. When in "3rd", your actually in 4th.
When in 4th, the trans is running in 3rd gear for OD.

[rt green]

I've got a 833 od cast iron from an 80's chevy pickup. looks the same as the charger trans. being cast iron do you guys think it'll be a little tougher?

[1974dodgecharger]

now that's some weird shit..never understood and I still never do even after you plainly explained it.  when in 4th your in 3rd and when your in 3rd your in 4th...mind as well stay in 3rd.....

If the OD is all your after, I guess a WIDE ratio OD trans would work...however, remember, when in OD YOU ARE ACTUALLY IN 3RD GEAR AT 70 plus MPH.

I didn't understand this part, what do you mean? 

It appears to be shifted normally, but 3rd and 4th shift lever is reversed. When in "3rd", your actually in 4th.
When in 4th, the trans is running in 3rd gear for OD.

[rt green]

as I understand it when your in a normal 4th gear you are 1 to 1. straight through, no countershaft gears. when in 4th{3rd} on an overdrive trans, you have to use gears from the countershaft to do this. that's what they are using 3rd gear for. if you flip the shift lever , the pattern on the shifter stays the same.   hope I got that right.

[1974dodgecharger]

what if Im on on the highway in 4th and want to show off can I down shift to 3rd? 

Either way too late...I did it awhile back downshifted to 3rd, revved, and peeled out, of course the guy next to me in his fox body mustang shit his pants and looked at him with fear.

[Kern Dog]

The 833 OD came in both aluminum and iron case designs. The iron case is much more durable, but remember that Ma Mopar used these transmissions behind 225 slantys and 318s ONLY. No 360s, no big blocks either. Keep in mind too that the HP ratings of the 225 and 318 were not very high.

[Chargerguy74]

I may possibly grenade one of these behind my 440 this year. I won't go easy on it. Hopefully nothing comes through the floor.

[1974dodgecharger]

I may possibly grenade one of these behind my 440 this year. I won't go easy on it. Hopefully nothing comes through the floor.

I already did  the driveshaft bent my floor.....

[shone190]

So, the conlusion is to stay with TF727

[Cooter]

There are those like my brother who touted a T5 like it was the strongest tranny around until it broke.
yes, I have had a T5 with no upgrades behind a 440's for over 5 years with no problems.

BUT!!! I do NOT beat on it. Period. With a 493, your gonna pound on it. Period. It will never break until your in the worst possible place. That's how it always goes.

[shone190]

What do you think about Passon Performance A833 with OD?

[1974dodgecharger]

What do you think about Passon Performance A833 with OD?

It it only for the hemi 18 spline or 23 spline? His 5 speed looks badass and based on feedback is AWESOME!

As for my A833 it was old non rebuilt unit, but engine was rebuilt so something had to give and who knows the history on it before I got it.....A833 are tough.....

[shone190]

Both of them 18 and 23 spline, are they stronger after Jamie rebuilt them?

[Cooter]

The Passon unit is a great unit. The pricetag however sucks. $5k by time is all said and done.

[1974dodgecharger]

Both of them 18 and 23 spline, are they stronger after Jamie rebuilt them?

don't think they are any stronger, but they are built from Jamie only two people I would trust to build are Jamie and brewers to rebuild these A833s.

[shone190]

So Jamie's A833OD 23 spline will be good choice?

The best way is to contact and ask him what he suggest for this engine/car setup.