ok, so im setting up an rt142 sedan, ive got a shitload of corolla stuff in my shed that im planing to use but i was wondering a few things

strut tops: what are they the same as?
steering rack: rack ends same thread as sprinter/e7?

what are the diffs like, will locking the standard one be alright (i had a locked borgy in my 4age ke70 for a year it was still fine)

i will add questions as i come across them