Shop manual says that I need a growler to test the armature, but I don't seem to have one laying around. Any way short of finding building a growler to test the armature?

I replace the brushed and everything else checks out fine. I think I'm going to stick it back together tomorrow and see if it works. If not, I guess I can assume the arm is bad. Wish me luck!


53 Dumpy

1951 Chevy 3100 "Ernestine"
1970 Chevrolet C10 "Ol' Blue"
1940 JD "long-hood" B
1959 Jeep FC-170
1960 IH B275
2013 Chevy Silverado
2023 GMC Denali 2500HD