Hello there. Could anyone tell me if it is possible to fit an AE86 rear axle [with disks] into my Ta22. Also is it possible to install the AE86 front strut/hub/discs etc?.

Front struts can be done, it has to be done as a mix and match of parts from both struts. I fitted AE86 struts and vented disc to a TA22 i had years ago, seem to remember, AE86 strut body, spring and TA22 top mounting.
Not sure on the axle , i think its to wide........good luck.

Edit can we not delete our own posts anymore???

I edited one of mine on General a few minutes ago
But you are right! there doesn't seem to be an "Edit" tag here

OOps! one minute later, having posted, I found it. Couldn't see it before