here we have a 70's Chevrolet c10 etc pick up steering gear box, basically a Saginaw 525 steering gear, but with the mounting bosses on the other side.
right hand input worm and nut. sector shaft spline size is 1 1/16 - vega is 1'', power steering is 1 1/8 - note-the small gm 605 power boxes are 1 1/16''
It has been fitted with a 70's Chevrolet corvette input worm, from the long sector Saginaw 525, its ratio is 16-1 - short stub input @ 30 splines 3/4'' fat
it has a 1970's Chevrolet Camaro pitmann arm, these are 6'' on centres (they are available 7'' from the 605) it has a 1/2 inch drop, and stock takes the 7 degree taper
similarily used on early ford tie rod ends
one turn of input = 65mm or 2.5 inches of travel, so lock to lock is 2 turns, which is nice.
note to self, you need a 7/8ths seamless tube 4.88 wall tie rod at 30.5 inches long, drilled 5/8ths and tapped - 3 stage tapped, 11/16 - 18tpi