I took the brake servo apart to powder coat the two metal halves about 10 years ago and found it very difficult to reassemble with the tools I had available

Using angle iron attached to each half for down pressure (one bolted to the work bench) then twisting the two pieces together I finally accomplished the difficult task.

I'm wondering what tool is out there that people use for this job or suggestions on a method that is easier than the one I used previously would be greatly appreciated before doing this again

 

Found this video with loads of informative content and suggestions for a proper repaint or repair of the servo.🙂