this maybe from a 76 rolla, the wagon box on an E70 rolla had a beefier pitman arm and equally beefy idler arm compared to the 76 rolla items.
A freind of mine had a 1980 corolla wagon, it had a different alignment data from the sedan due to the box setup and also required to ensure the box was actually centered (the box has an internal mechanism that removes freeplay in center position) and also use a spreading bar between the front of the front wheels to simulate road load - such cars also require the wheel bearings to be set correctly otherwise the slop can throw it off alignment - and the footbrake is worked a few times to ensure no issues with "natural sitting" of the wheel.
these old setups also mandate to check the ball pin alignment - in simple terms it tells you to check that the pitman arm and idler arm are in the exact same plane - washers are used to adjust the height on either side.
remember I told you I had a mazda 808 - it has this box and I learnt it the hard way - on how to repair front ends of cars with such setup, the mazda box was very nice, I could palm the steering at crawl speeds - I did rebuild it correctly with 4 spare boxes, new parts were expensive for me (stoodent life) - I made tools from wood, thread, old screws, nuts n bolts to measure input torque.
you are right - its probably rebuilt with sloppy workmanship and has worn out items in it.