8 3/4 rearend help also disc conversion

I got a brand new 489 third-member with clutch sure-grip, 3.55 gears, 1350 yoke and 1350 driveshaft and had 8 3/4 rearend power coated and unfortunately I let it set and rust has coated the inside a bit so should I have it power coated again? Also I was gonna use the stock axles but I feel like I should buy new ones due to the original 3rd member was an open diff and I don’t want old axles to mess up my new 3rd member. But before I came to this conclusion I had a shop press all new bearings and such and found out it was done wrong and that I could unwind the wheel bearing spiro-lock so you can swap the 5-hole wheel bearing retainer and brake backing plate but idk how too haha or what that means. But also since I’m planning on going with disc breaks all around then I thought I would just buy new axles already pressed with bearings and ready to install from Dr. Diff? Also what shocks should I get and what disc conversion kit is the best? Also where can I get like stock break lines that won’t rust? But idk what axles I should get or need so what do you guys think? It’s for a 1972 Plymouth satellite that will have a 440.

Fine Lines has your brake lines in both mild steel and Stainless if you don't want rust..
As far as brake conversions go.. well, opinions vary so be prepared to do your homework.

Dr. Diff has everything you need.

No idea what you have going on there.

kinghs95 said:

.......I had a shop press all new bearings and such and found out it was done wrong and that I could unwind the wheel bearing spiro-lock so you can swap the 5-hole wheel bearing retainer and brake backing plate but idk how too haha or what that means.....

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Pictures look like the back plates went on before the bearing set. What bearing do you have a tapered or roller?
Sounds like they are saying the bearing can be disassembled? I know I can't verify that.

Daves69 said:

Pictures look like the back plates went on before the bearing set. What bearing do you have a tapered or roller?
Sounds like they are saying the bearing can be disassembled? I know I can't verify that.
View attachment 916327

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Green bearings and I’m pretty sure tapered

kinghs95 said:

Green bearings and I’m pretty sure tapered

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Tapered bearing


Green bearing (Sealed)

khryslerkid said:

Tapered bearing
View attachment 916403

Green bearing (Sealed)
View attachment 916404

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Green bearings from dr diff is what’s on the axles