no, a h165 has a larger housing and axles too, you need the full diff, both axles and center fail in the h145

i do not have a genuine phantom grip, i got mine through Tayell Automotive in VIC years ago

there is also the very rare opportunity to buy a torsen LSD for H165, brand new, from Topgear on this website at this moment

you will also be keen to look at diff ratios

perhaps you should tell us a lot more about your plans and location so we can better assist you with advise