confused on these brakes

well i wonder if there is also something else amiss.
if your 9 inch brakes only work with a cylinder designed for 10 inch
i wonder if you have something else in there that mismatches

the kind of problem you might get if say, you tried to fit 1990s dakota 9 inch brake cylinder in a 9 inch back plate from 1962....
Where a 10 inch cylinder for a 62 might fit beacuse of its vintage (this is a made up example to illustrate a point rather than anything i know to be true)


to be honest i don't know but without seeing the difference between the two all i can do is guess

when you say the shoes don't align. is that becasue the cylinder bolts in with its ends too high or low or becasue the shoes just don't reach far enough to engage in the ends of the cylinder? that might be a spring or strut problem.

a picture might help with an indication of which way is front of car


Dave