Looking for a 1972 olds TH400 for sale?

[BigBertha442]

does anybody have a 1972 olds TH400 for sale?
I have a olds TH400 from 1979 but want to have the correct yr for my car.

If all other numbers match on the car except the trans can it still be a numbers matching car?

[rocketraider]

In a word, no. If you want to get close by the year, that's fine, but in your case, a T400 is a T400. You can try to find a correct 1972 A-body 455 OD code transmission if you like. That'll get you close to what's supposed to be in there, but you know you're fighting the rest of the 1972 442/Hurst crowd to find them.


What code is the trans you have in there? Look on the square plate on right side of the trans.

[BigBertha442]

it is a 1979 OF

[rocketraider]

Everything I've got shows the OF trans was last used in 1970 on 2-barrel non-cruise control 88s (no speedometer cable connection). Sure you don't have a 1969 transmission?

If I had to guess, I'd say you've got a Frankenstein transmission rebuilt by a jobber many years ago. Probably an OF case with a speedometer tailhousing. If it's working OK, leave it alone and start searching for a 72 OD as it may take some time to find one and rebuild it.

I understand the wish to have the right stuff in the car. My 1976 Ninety Eight had a 1971 transmission installed years before I got it, and I have often considered looking for a correct 1976 unit. There's a couple junked 98s in the yards here, but working 60 hours a week, I never have time to go look. Then who's to say the junkers still have their original transmissions or the right speedo gear? I have a dead 76 Custom Cruiser wagon parked out at the farm, but it has a 375. I guess I could have the extra clutches and all put in it to make it a 400, but I'd still have only a 1976 date code, not a Ninety Eight 400.