Rear wheel cylinder rebuild

[mapletonmopar]

Hello,
I figured its probably time to rebuild the rear wheel cylinders on my T/A. Looks like the casting number is 3461776. Looking for original mopar rebuild kits. I think the part number 3780524, can anybody confirm this is correct before I order anything? Cant find much solid info on this...Thanks

 

[MILOJ]

Its nice to buy a mopar parts book for your year it will have the correct information you need