On my ‘55, I needed a different length drag link and was able to get another suitable one that was too long. Found a place I could get a die and set it up in the lathe with spindle locked. Used one of my large Crescent wrenches to turn the die. Worked out well, gave my arm some good exercise. On some larger GM trucks they have 1” x 16 and 1” x 18 steering gear threads on the same truck, so measure carefully!

Threads in picture are covered by plastic pipe to keep dirt out.

Ed
Attachments
IMG_1090.jpeg (293.92 KB, 145 downloads)

'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.