Call Classic Tube
https://chevytruck.inlinetube.com/chevy-truck.htmlThey sell 1/2 ton and 3/4 ton parking brake cables.
They will try to match other length cables, if you can send them original.
"Although we have a physical library of over 14,000 parts, we can reproduce any line in OEM or stainless steel working from your original. If we do not have your application, we can make it custom for you. When we receive your original, we will call you with a quote. Once the quote is accepted, the new part(s) will ship within a few days. Prices for custom duplication are based off similar lines in our catalog with a slight up charge. "
