Replaced automatic transmission, shifts early. Options

[JohnnyCeee]

I would greatlyrics appreciate it if somebody would help me out here...
The differential part of my transaxle recently failed so I bought a used transaxle from a scrapyard. The new transmission shifts early, like my old one did when it was cold, even when I floor it after driving for an extended period of time. New fluid and filter done at installation. Any ideas? Thank you in advance.

[Bitter]

You need to adjust the throttle valve cable from the throttle body to trans, I don't remember which way you need to adjust it for it upshifting too early but I think you need to add some slack to the cable. It can also force downshifts more readily to make the car feel a little peppier and to make highway passing easier.

[JohnnyCeee]

You need to adjust the throttle valve cable from the throttle body to trans, I don't remember which way you need to adjust it for it upshifting too early but I think you need to add some slack to the cable. It can also force downshifts more readily to make the car feel a little peppier and to make highway passing easier.

Thank you very much

[Bitter]

It doesn't take much to notice an affect, I think I added less than 1/4 inch of slack to my 7A and it's automatic and it would hold a gear longer before upshifting at part throttle and more easily down shift with less throttle. It made the trans more sensitive which made the car feel sportier to drive, I really liked it!

[Galen57]

I will try this. Mine shifts way too early.