Beata

there is little plastic clip on top -- cannot see it 
if you pull it hard you will break it ( i did )  

you still can put things back together even with broken clip
other clips should be visible to press and pull

Glad you sorted this out 
Im going to recondition entire rear diff 

Problem is Toyota does not allow to repair ELECTRO MAGNETIC CONTROL element therefore does not display parts for it 

I've managed to reverse engineer and from Japanese forums 

All parts in total will cost me 250GBP  imported this will rebuilt and replace all necessary elements  total 15  to make rear diff as new 

cannot wait -- it is like lego so easy to drop it and remove from car and all work done on bench 

Yes the main front fails often and  nobody is talking about it in UK -- but in Japan this is on the most common list to do.

I hope you change side seals same time if not please monitor if you see any sweating dont wait 

normally OEM 90311-42046  and after 2014-on:    90311-42062

But im sure you know how to find correct part numbers 

All the best 

have you managed to replace bearing 
by any chance have you noted the bearing spec as 165GBP seems to be excessive and locally we should be able to source cheaper 

Regards,

Beata

i could not see specific manual for dumper replacement however there is toyota PDF how to work on this part and drop steering assembly to get access to dumber 

i will try to search for the guide 

they all gone sooner or later and if you have symptoms as described this would be the cheapest start point before you hit the expensive steering shaft/rods path
good coffee or tea. 1hr good music

cost about 20GBP parts  but satisfaction is priceless 

if you like reading manual you can find here also for cvt 2.4

https://www.facebook.com/groups/815861953329959/permalink/817212163194938/

the real deal is techdoc which im trying to make pdf as at the moment only exists as ripped db and work in vmware win 95 as need IE 5.5 

dvd  in English cost about 60 $ 

if you don't mind Russian than is free

ive started releasing pdf section based on request and demand on my fb group 

https://www.facebook.com/groups/815861953329959