Forget the name Apache when you are looking for parts. Apache was a marking term used by Chevrolet for all of its light-duty trucks, from the ½ ton to the 1.5-ton from 1955-1961. Most aftermarket parts are for ½ ton trucks. When you search for parts, you can search for a 58 1ton truck , a Chevy 3800 truck or 3G. Many parts are interchangeable with GMC.
First I would buy a parts book or a CD for your 58 Chevy 1 ton truck.
The book shows that the front brakes and hardware on a 58 1 ton is the same as the ¾ ton. Shoes old 3703512 new 3703511 P/N
So I google
1958 Chevy 3/4 ton front brakes shoes.
Old Chevy trucks
https://oldchevytrucks.com/me2981.html chevs of the 40s
https://www.chevsofthe40s.com/detail/9921/Chevrolet_Brake_Shoes_34_and_1_T_Front_34_Rear.htmlGoogle
1958 Chevy ¾ ton Brake hardware https://www.classicparts.comBrake Spring Kit Front & Rear 3/4 Ton #71-522 front only
Brake Adjuster Screw #71-611 Front.
Drum Brake Adjusting Screw spring Front & Rear Raybestos H407 EBay
Front wheel cylinder 5455480
Raybestos WC18009
EBay 5455480
The rear brakes 14'' 3742396 New 3703511 Old P/N
The rear brakes and hardware parts are out there. I found everything.
I will let you search for the parts. Used the sites below and google.
Think outside the box.
Search sites
http://www.gmpartswiki.com/query for looking up part numbers
https://www.yoyopart.com/ Cross Interchange Parts
Raybestos
https://www.brakepartsinc.com/raybestos/catalog-part-search/catalog-interchange.htmlGood luck and have fun with your project