Axle and brake help

[Kalums]

Ok here is a head scratcher for me and I'd appreciate any help given, so I've got a 71 GMC K2500 that somewhere along the line a previous owner put a Dana 70 DRW axle under... I've identified it a a Dana 70 from the bottom passenger side gusset on the differential housing. The serial number stamped into the passenger side axle tube (if I remember correctly, I will re-look/ take pictures in the morning) identifies it as an mid 80s (84 I believe) Dodge W350 axle. With all that info I am having a hellacious time finding the rear shoes... They measure out to be 13x2.5, but NONE of the shoes I can find have the correct/ same holes for springs and hardware. I've included (horrible) pictures if they help. The pictures are of the passenger side and the rear shoe seems to have been manually drilled to accommodate the paking/e-brake "pivot arm". I can readjust or redrill new shoes to match if need be but the closest myself and ANY parts store or brake specialist near me has come up with is the Wagner Z320R shoes but the top spring "hole" is in the wrong place. Again any help would be greatly appreciated.
PS the drums only say "BUDD 96125" on them.
I would also like to point out that a few parts seem misplaced in the pictures to me... These are before I took anything apart... AND no the rears have never functioned since I've had the truck. ( I think there is air in the line and the wheel cylinders leak)

[Rust_never_sleeps]

See if any of the 13" here look right:

https://www.rockauto.com/en/catalog/...rake+shoe,1688

[Kalums]

Originally Posted by Rust_never_sleeps

See if any of the 13" here look right:

https://www.rockauto.com/en/catalog/...rake+shoe,1688

The 2 13" rears I see in there are the same as the Wagner Z320R(s) just different part numbers for different seller. I've also been scouring Rock Auto... Too bad RA doesn't let you look parts up by item name (ie 13x2.5 brake shoes) �� Thank you though��

[Rust_never_sleeps]

...or you could look up shoes by the part number of the drum they go to

[Kalums]

Originally Posted by Rust_never_sleeps

...or you could look up shoes by the part number of the drum they go to

Tried, I personally can't find anything for "BUDD 96125" Brake drums... The internet does not like me or it could just be that I've been at this most of the day and I've gotten increasingly dumber by the hour staring at all the numbers and cross-reference numbers *sighs*

[Rust_never_sleeps]

These guys have several different drums for that Budd number. No shoes listed, but maybe if you call that CS number they can match you up

[Kalums]

Originally Posted by Rust_never_sleeps

These guys have several different drums for that Budd number. No shoes listed, but maybe if you call that CS number they can match you up

By "These guys" do you mean Rock Auto? If so I hadn't even thought to call... *facepalm* I will try that in the morning thank you.

[Rust_never_sleeps]

Originally Posted by Kalums

By "These guys" do you mean Rock Auto? If so I hadn't even thought to call... *facepalm* I will try that in the morning thank you.

No, I went too fast and dropped the link:
https://www.durabrake.com/literature/part_list.pdf

This random listing on evilbay might be relevant:
https://www.ebay.com/itm/394051969044

[Rust_never_sleeps]

https://www.durabrake.com/brake-drum...ange/?pn=96125

[Kalums]

Originally Posted by Rust_never_sleeps

https://www.durabrake.com/brake-drum...ange/?pn=96125

Called Durabrake.... The guy essentially laugh at me... In a nice way. The brakes on this thing are completely wrong apparently. It has the wrong spring set and a previous owner apparently just drilled holes in brake shoe to be able to mount them. He can't find a proper picture... But they aren't mounted in a way that he has ever seen. It is missing the adjuster "plate" that keeps it from backing off and the springs are completely wrong, According to him. So... I'm back at square one 😭

[Rust_never_sleeps]

Originally Posted by Kalums

Called Durabrake.... The guy essentially laugh at me... In a nice way. The brakes on this thing are completely wrong apparently. It has the wrong spring set and a previous owner apparently just drilled holes in brake shoe to be able to mount them. He can't find a proper picture... But they aren't mounted in a way that he has ever seen. It is missing the adjuster "plate" that keeps it from backing off and the springs are completely wrong, According to him. So... I'm back at square one 😭

All facts are friendly. At least you know.
Maybe find an old motorhome in the scrapyard on an M300 chassis(there were a lot of them) and rip the guts out of the brakes.
OR scrounge up a GM rearend and never have to deal with a Frankentruck again

[Kalums]

Originally Posted by Rust_never_sleeps

All facts are friendly. At least you know.
Maybe find an old motorhome in the scrapyard on an M300 chassis(there were a lot of them) and rip the guts out of the brakes.
OR scrounge up a GM rearend and never have to deal with a Frankentruck again

Went to the local yard, found a 74 full float D60 that needs a pinion bearing I can feel/hear it making a grinding... Or I found a 75 Ford F250 full float D60 that with what appears to be a Detroit locker (4.10 gears) BOM says it has 3.73 but metal tag says 4.10 with the Ford locker part number stamped on it also... What do you think?

[Rust_never_sleeps]

Out of my comfort zone to advise you there, tbh, sorry. Gonna be some rust above the "waterline" but maybe in the desert, that's superficial :shrug:

Maybe some grizzled veterans can chime on their experiences

[Kalums]

Originally Posted by Rust_never_sleeps

Out of my comfort zone to advise you there, tbh, sorry. Gonna be some rust above the "waterline" but maybe in the desert, that's superficial :shrug:

Maybe some grizzled veterans can chime on their experiences

Thank you for the help so far

[Kalums]

I got off the phone with Dana/Spicer about an hour ago and here is the info that was provided to me: The axle currently under my truck is a 68-71 M300/ D300/ W300 possibly out of a motorhome or 1 ton truck/ Van. Napa doesn't have brakes for ANY of those applications... Nothing even listed. Everything I find online is not like what was in there and I can't find what would/could have been original (schematics or even pictures of any kind). It currently has 13x2.5 shoes and rotors from Durabrake... That is all I've got...

[Rust_never_sleeps]

Maybe some help on RV forums?

[Rust_never_sleeps]

this is another 13x2.5, maybe the right hole pattern. P/N from Rock looks right
https://www.autohausaz.com/pn/CE-111...YLFwx24nYcGPEa

[Kalums]

Originally Posted by Rust_never_sleeps

this is another 13x2.5, maybe the right hole pattern. P/N from Rock looks right
https://www.autohausaz.com/pn/CE-111...YLFwx24nYcGPEa

Those do look very similar, thank. I will research these ones too