Show view 1988 chevy k1500 rear brake set up

SOURCE: speed sensor

Its in the transfer case towards the rear on the drivers side.

SOURCE: need Rear Brake Diagram for 1994 Chevy K2500 4x4

Here is the diagram,It is always a good idea to only disaasemble one side so you can use the other side as a reference,I also reccomend using a set od brake pliers,they will the disassembly and reassembly much easier.

SOURCE: bad oil leak by the starter on my 1988 chevy k1500

Could be the oil pan gasket or the rear main oil seal.
Remove the torque convertor cover. ( I am assuming that your truck is an automatic) That's that thin metal cover between the engine and transmission on the bottom side.
Drive the truck around the block to warm up and the oil to start leaking.
With the engine running in neutral, emergency brake on and wheels choked for safety.
Crawl under the truck and see where exactly the leak is. Is it between the flywheel and the engine block --leaking straight down the center of the flywheel --crankshaft rear seal?Or the pan gasket? or even a oil galley plug?
Good Luck.

SOURCE: replaced rear drum brakes on

check the cable, if its corroded, rusted, the spring in the drum isnt strong enough to pull the cable back, to release the brake. You may need a new cable for the drivers side.

SOURCE: how to adjust rear brakes on 1993 chevy k1500 4x4

should be a regular break shoe setup, there should be a hole in the backing plate to adjust with a screwdriver but i find it's better to pull the brake drum off and blow out all the dust (just don't breath it) then you can check to make sure the wheel cylinders aren't leaking and all the springs are good. it's also a good idea to pull off the brake adjusters to clean and lubricate them. if you need to replace anything and your not familiar with brake shoe setups then do one side at a time and remember short shoe to the front long shoe to the rear.