I have read that you shouldn’t do it. During the process of troubleshooting some other things I noticed that my rear axle on the truck has two different 3030 chambers. I can clearly see the markings on them. One is a 3 in long stroke with the square boss inlets The other is a 2.5 stroke and has round boss inlets for the brake hose fittings.
I am thinking with two different sizes the slack adjusters were used to compensate for the difference. Maybe they are close enough to work but not…
