Has anybody got a secret to tightening the slotted screws in the pitman arm on the early toys? I can't get mine to move.
Also, are the steel brake lines that connect the caliper to the flex hose metric or something else? I was changing the rotors today, ordered in new lines and straight tubing with the prefastened end and they don't fit the hoses or the calipers. The size on the invoice specified 3/16" metric.

 

They make special draglink sockets (I have a Craftsman #44512 for mine) but a large screwdriver with a square shank and the appropriate wrench also usually works.

Any after market brakeline you buy will be a standard size with metric threads. You're not likely to ever see 5mm line anywhere, 3/16" is close enough and it saves the manufacturers a little money to just produce on size instead of two. Been that way as long as I can remember. Just be sure the metric threaded end is what you need: M10-1.0 inverted flare. There is also M10-1.25 and a "bubble flare" common for European vehicles.

 

Stuff rusts bad in B.C. so soak those joint screws with penetrant, then the big screwdriver with square shank and a wrench as Dave said, should do it. I found a new set of cups and springs every 70,000 miles or so were needed, but it's cheap and easy maintenance.