ta22 gearbox/diff problem

[kolby]

Ok i have 2 problems here with 2 different cars.

Problem 1. I have a noisy diff in a 1972 ta22 celica. It has had a 4agze conversion and is
running a T50 gearbox and customised tailshaft. I attempted to switch out the diff
centre with a diff centre from another 72 ta22. Ran into a problem when i
measured up the flange on the diff centre. it was 78mm diagonally but was oblong
approx (62 x 49mm) the flange on the diff cente i was attempting to put in was
55x55mm also 78mm diagonally.

So now i am left wondering what the diff is actually out of so i can get a full diff or centre and switch over. Its flange in as said above 62x49mm and 78mm diagonally (PCD) It has number on it too 37x9 which im lead to believe is a 4.111 ratio.

Any help greatly appreciated as it has me stumped!


Problem 2: Much simpler this one. I have a different 72 celica with a diff that is about to
go. It is a t50 gearbox. I have a spare W50 steel case out of a Ra23 sitting
in the shed. Can the w50 bolt up to the 2t engine in the ta22 or is there mods
that have to be done and if so what sort of mods?

Thanks heaps!

kolb

[toyo-al]

I believe the difference in the tailshaft/diff flange is related to the build date. I think somewhere around the '73 mark was when they change.

This is off the top of my head and I'm not quite sure which build model has which flange, but I think it has something to do with this. Would be good if someone could confirm this?

Cheers,
Al

[kolby]

Thanks for the quick reply. I have a 72, 73 and 74 celica and they are all the 55x55mm square flange however i put a 76 ra23 diff into one of the other ta22's and i do remember having to change the flange on the end of the tail shaft so it fit. Come to think of it though i poked my head under that particular car the other day too and it was 55 x 55mm flange.. Hmm Could the diff be from a corolla or something?

[tojo]

My 73 ta22 diff has the oblong pattern Think the early TAs came with 2 different crownwheel sizes 6.7" and a sligtly smaler one . Could be something to look into

[kolby]

thanks that has made me think now. I havent measured my 73 as the diff in that one has had the bomb but i might run the tape accross it so i know what im looking for!

cheers


Anyone with any idea about the w50 gearbox bolting up to a 2t engine.

thats for the help

[kolby]

Extra piece of info.

The diff centre has D19 cast into it.

If this helps to identify it?

[OXR]

Ran into a similar problem noted here. (bugger.jpg)
I belive the non oblong flange is a later model diff with a wee bit bigger crownwheel.
I pulled it from a 1984 celica I think long time ago.

As to the 2t, you will need a bell houseing to suit.
The w50 will not bolt to a T50 bolt pattern bell.

See Bellhousing Adapter at
http://www.brdracing.com/t50_t40_w50_drivetrain.htm
I think this should work, i'm pushing around idea of useing one to bolt a W50 to a 4AGE when it goes 4agte

Pic of complete w50 box was for a 3tgte, but I belive all t series donks have same pattern.
Best check it out on goggle as I have no idea what i'm talking about

[kolby]

Thanks for the replies.

Great info!

I might see if i can track down an early ta22 diff and check it out.

As for the w50 onto a 2t engine. Can the bell housing from the buggered t50 in the car at the moment be put on the w50 to make it fit or will i need an adapter?

Also i read something a while ago about shifter position. Are the shifter positions on the w50 and t50 the same?

To solve all this if anyone in Tasmania has a ta22 gearbox (t50) I would be very interested in buying.

cheers

[tojo]

Thanks for the replies.

Great info!

I might see if i can track down an early ta22 diff and check it out.

As for the w50 onto a 2t engine. Can the bell housing from the buggered t50 in the car at the moment be put on the w50 to make it fit or will i need an adapter?

Also i read something a while ago about shifter position. Are the shifter positions on the w50 and t50 the same?

To solve all this if anyone in Tasmania has a ta22 gearbox (t50) I would be very interested in buying.

cheers

T-box bellhousing wont work on W-box. Will need a different bell or adaptor.
Driveshaft yoke & clutch will be different as well. Better off finding a new T -box. W50 got 3? different shifter positions and T50 two..

[kolby]

hmmm fair call. Will try track down a celica t50 then i think.
An early celica wreck would be ideal. Grab the diff for one car and the gearbox for another!

[lilcrash]

1. D series diff is the little one.

2. T50 doesn't have a removable bell housing. So no you can't put the t bell on the w. If you cant find a t50 just go find a manual g series car and bolt in the bigger gearbox.

[o_man_ra23]

A W series box will require a number of things. First you will need an automatic TA22 tailshaft. Second you will need a 1G to W5x bellhousing. The W50 doesn't fit the W5x bellhousing, so it is practially impossible to fit a W50 steelcase to your motor.

As mentioned by lilcrash, you have the D series diff in your car (or so it would seem). These were used in the early models, and I have seen one standard equipment in a 73 Celica I wrecked. AFAIK there are no aftermarket LSDs available for these. Also AFAIK you should be able to put a T series from a later TA22 into this vehicle, which may also increase the size of the rear drums. This would also allow the use of a Zenki LSD centre (TRD, KAAZ, Tomei or Cusco)

[kolby]

Ok that sounds alright then...

The problem im running into with the diff is the flange from the diff/tailshaft.

The car has a 4agze and corolla t50 box and customised tailshaft, so im not 100% on the flange. Although i would think they would make the tailshaft suit the diff and flange that was already in the car.

How would i go about putting a different diff into the car?

I do have 2 spare later model celica diffs laying around but havent bothered because the flange doesnt bolt up.

well i actually put the centre out of a 3rd spare diff and realised the flange was different so we switched the flange and low and behold it is loud loud loud. There 5 or 6 celicas in the back yard so it would be nice to be able to fix it with the parts i have.

If a later model 74,5,6 celica diff could somehow fit that would be great?

[lilcrash]

The diffs are interchangeable. All ta22s have the same bolt locations afaik. And If you have a few celicas just swap the diff and tailshaft. As long as it's a manual tailshaft if will be the same length

[o_man_ra23]

Use the tailshaft flange from one of the other Celicas with the square bolt pattern. Just need to disassemble your uni joint to do it. If the uni is a bit old it would also be an opportunity to change it.