I agree mine were slowly leaking at the QD' s on filter adapter, was on the to-do list, but the hose gave way first. Yeah I'm not thrilled with the radiator side and flat with o ring seal, but it's better than another QD.
And when I replaced the hoses last year I had owned the truck for about 6 years, my mom and dad bought it new. After my dad died, my mom decided she didn't need two trucks. So she kept the Duramax and I bought the K2500 from her. And I keep it nice and fix everything. Up untill I got it, it had all service done at the dealership who did mostly trucks, Suburbans , Vans.
I have 91 GMC, they liked it when they borrowed it. Decided to get there own truck 95 K2500. So it's staying in the family.