New A833 Conversion Thread

[55 Fargo]

Hi all, this is a new thread created to discuss, document and share a Mopar 4 Mopar solution for a more modern overdrive trans alternative.

Lets keep this civil, and learn and become more educated in the process.

There are a number of individuals contemplating, or undertaking this conversion.

To date I will be 1, and it will be well documented, I currently have the plate, but need a trans.

I did have a trans "tentatively", but unfortunately, it was promise to another relative, so on the hunt.

I have a few prospects and will report what I find.

So lets enjoy this and have fun...

[Young Ed]

For comparison sake can you post the ratios of the A833? Or an identifier if there is more than one set of ratios?  Do you have a relative with an old mopar?

[cavisco1]

Here is an interesting article about the A833 and ratios. Mostly performance oriented, but still some good info.

http://www.hotrod.com/articles/a-833-the-ultimate-mopar-4-speed-fix-get-overdrive-and-strength/

[55 Fargo]

Some Tech specs on this particular transmission.

2 versions 1 1975 thru 1987 Overdrive 3.09:1 - 1.67:1 - 1:1 - 0.73:1 (Trucks used a 0.71:1 fourth) for passenger cars and 1 for trucks,

 

[55 Fargo]

1 minute ago, cavisco1 said:

Here is an interesting article about the A833 and ratios. Mostly performance oriented, but still some good info.

http://www.hotrod.com/articles/a-833-the-ultimate-mopar-4-speed-fix-get-overdrive-and-strength/

Yes it is as well as the Slant Six org, has a really good tech info thread on this as well.

[oldasdirt]

1 hour ago, Young Ed said:

For comparison sake can you post the ratios of the A833? Or an identifier if there is more than one set of ratios?  Do you have a relative with an old mopar?

Its all covered along with a bunch of information elsewhere on the site although were you note just posting about using your spare t5 ?

 

 

[55 Fargo]

Just now, oldasdirt said:

Its all covered along with a bunch of information elsewhere on the site although were you note just posting about using your spare t5 ?

 

 

Yes you are absolutely correct OAD. The main focus of this thread, is to allow those who are contemplating or undertaking the conversion.

Hopefully it will generate a well informed thread documenting any of those who choose to participate.

The sole intention of this thread will be focused on the conversion, the actual build, and is not to be interpreted as a thread for debate on what transmission is best, or what you may like otherwise.

THE  SOLE PURPOSE IS A MOPAR 4 MOPAR TRANS ALTERNATIVE VIA THE CHRYSLER A833 TRANS

[oldasdirt]

I have talked to a gentleman in South Carolina who a few years ago put an a833 into his 1937 Plymouth and went over in great detail the change.  That isn't in a truck

I realize and since this is the truck forum I am out of my depth in terms of putting the a833 into a truck.         I did have a 1954 Dodge 4 ton at one time that had a factory overdrive in it. It was a 5 speed. That was the only truck I ever saw with one so clearly the A833 route is the obvious way to go and keep it Mopar.  I also know compared to the t5s that came out of the Mustangs and Comaros these are a lot less expensive.  It seemed more slant 6 pickups had them.

Personally with  AoK boys building Adapter kits I would suggest chatting with them if you haven't already.

 

 

 

[55 Fargo]

4 minutes ago, oldasdirt said:

I have talked to a gentleman in South Carolina who a few years ago put an a833 into his 1937 Plymouth and went over in great detail the change.  That isn't in a truck

I realize and since this is the truck forum I am out of my depth in terms of putting the a833 into a truck.         I did have a 1954 Dodge 4 ton at one time that had a factory overdrive in it. It was a 5 speed. That was the only truck I ever saw with one so clearly the A833 route is the obvious way to go and keep it Mopar.  I also know compared to the t5s that came out of the Mustangs and Comaros these are a lot less expensive.  It seemed more slant 6 pickups had them.

Personally with  AoK boys building Adapter kits I would suggest chatting with them if you haven't already.

 

 

 

Yes I agree OAD, and I should have qualified the thread to include any A833 car conversions, as they are very welcome.

If you ever get pics or info on the 37 Plymouth conversion, please post and share, always interested.

Oh yes the big 5 spd truck trans with an Overdrive, have never personally seen 1, but have discuss them nay times with Tim Kingsbury.

If anyone should be in the "Hall Of Fame" for  Mopar Flathead 6 Cylinder and custom parts including transmission options, this honor should be bestowed up George Asche Jr and The Late Mr Eddy Kingsbury, both gurus and pioneers with Mopar Performance..

[Young Ed]

7 hours ago, oldasdirt said:

Its all covered along with a bunch of information elsewhere on the site although were you note just posting about using your spare t5 ?

Yes I do have a post started about the 2 T5s I have. Didn't know that would exclude me from being curious about the A833.

[Don Coatney]

17 hours ago, Rockwood said:

Hi all, this is a new thread created to discuss, document and share a Mopar 4 Mopar solution for a more modern overdrive trans alternative.

Lets keep this civil, and learn and become more educated in the process.

So lets enjoy this and have fun...

Glad to see this thread as it hopefully can answer many questions that I don't believe have been addressed to date.

What is the final shift lever position once the transmission has been installed? Hopefully not in the middle of the bench seat. What floor board modifications are required? Simply cutting a new hole or must the hump be modified?

Is the input shaft close to the same length as the original factory transmission? Will the factory pilot bushing work or will modifications be required?

Will the original throw out bearing and holder fit the input shaft bearing retainer or are modifications required? Will the factory pressure plate work or is an upgraded pressure plate required? What clutch disc will be required?

What emergency brake modifications are required? What driveshaft modifications are required?

[55 Fargo]

Some questions of course need to be answered, I do have  the general knowledge on this conversion.

Like other trans swaps and conversions, anytime these are undertaken, and the donor trans obviously does not have a rear drum style ebrake, something needs to be added.

This is remedied in a couple of ways, a more modern diff with modern brakes with an ebrake capability. The other would or could be an electric ebrake, an aftermarket product for which I have very limited exposure, in fact only what I have discovered via the web.

In my conversion, I already have a modern Mopar 8 1/4 diff with ebrakes on it, so no issues, a Chrysler solution in my case.

With a quality engineered aluminum adapter plate, ( in my case AoK Racing), is all that is needed to mount the trans to the stock bell housing, there are a few different types, to accommodate cars and trucks.

23 spline input shaft and clutch disc all Chrysler Corp designed, no off brands using a GM disc for an off brand GM T5 trans.

On Tim Kingsbury's blog you will find very detailed information, on the trans, conversion etc, I invite anyone who is remotely interested to take the time and search for the info in that location of this web forum.

Again, if I have not entered accurate information on this post will correct it, I do not have all the answers but will continue to update and learn more myself in the process

Shifter position can be viewed on the blog, and on the www, I strongly suggest those who may "just wanna know" go an tire kick in those locations to see if it's something you can work with. Unlike other trans plants, the A833 has side levers, is not a top loader with shifter positions all over the map..

[55 Fargo]

47 minutes ago, Don Coatney said:

Glad to see this thread as it hopefully can answer many questions that I don't believe have been addressed to date.

What is the final shift lever position once the transmission has been installed? Hopefully not in the middle of the bench seat. What floor board modifications are required? Simply cutting a new hole or must the hump be modified?

Is the input shaft close to the same length as the original factory transmission? Will the factory pilot bushing work or will modifications be required?

Will the original throw out bearing and holder fit the input shaft bearing retainer or are modifications required? Will the factory pressure plate work or is an upgraded pressure plate required? What clutch disc will be required?

What emergency brake modifications are required? What driveshaft modifications are required?

Don,are  you just wanting info, or are you contemplating a trans swap for your newly acquired Dodge this past year.

Do you have a truck build going on by chance?

As I have suggested to others, their is a blog on Tim Kingsburys blog site, that answers a lot of technical questions in details, as you have often suggested, I suggest you do some searching as well.

This evening I will be having a telephone call with George Asche, to discuss another matter, but since you are asking for info I will tell George he can possibly expect a telephone call from you. I will convey your concerns and questions as well as any doubts you may have, and hopefully if you call George, he can address your concerns.

 

[55 Fargo]

1 thing I would like to qualify for this thread, and have expressed this in the opening. This is a build and/or who is debating or undertaking an A833 conversion, whether they are planning, have begun, or are completed.

In my particular case, there could be time lapses, and post gaps, as this may be longer than I would like.

I will document every step of the way, in a very open and honest manner, this will be complete with pics and videos where possible.

I will also be posting testimonies from a few individuals who do not do "computers" but have done the swaps already, whether it be pro or con, this will be transparent, and those who come to this thread will have the best of technical information.

 

 

[Don Coatney]

I thought the purpose of this thread was to share information on an A-833 transmission upgrade. Not to question what me or any other posters are doing. I have read most everything on this website and have never seen any information on the questions I asked. I am looking to share information on this thread, not argue or make phone calls. I believe my questions are valid for anyone contemplating this or any other Mopar upgrade.

[55 Fargo]

2 minutes ago, Don Coatney said:

I thought the purpose of this thread was to share information on an A-833 transmission upgrade. Not to question what me or any other posters are doing. I have read most everything on this website and have never seen any information on the questions I asked. I am looking to share information on this thread, not argue or make phone calls. I believe my questions are valid for anyone contemplating this or any other Mopar upgrade.

Okay Don no problem, guess you will have take a  seat, be patient, and read the posts as they come in, thank you for your interest on this topic