i can help u get started ,
but ....
if your this un-familiar with your rear drum brakes ?
you NEED the FJ60 8/80-9-87 TAN chassis and BODY FSM manual
a paper print media one '
not some BS sill PDF that may or may not be right ?
if you go about this without the FSM i describe above
, you will fail ......
- if you have it saddled over your knee cap and can refer to it like clock work ,
you CAN'T fail , and only will succeeded the first time 
- im telling you what u need to hear , not being rude ....
- you hear any less don't listen to it
see this LINK too please , it will help you get started the right way
- OEM Toyota SST # 09756-00011 Special SERVICE TOOL - JIS HARDEND THREADS BOLT Bolts qty x 2pc KIT...
vintageteqparts.com
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