[HO455]

I can speak as to 2wd hoses which I believe are the same but shorter than K model hoses. I know the hoses can be taken apart from the fitting but generally are not. I believe the threads are fine threads so there would definitely be more than 1 & 1/2 turns. I would look very closely at the threads to see if they are the same pitch. The hose to fitting connection will likely be non flared and have a copper gasket.
If it helps you can look at my WMB thread post #196 (link below) and see what style hose I used. There is a late and an early model hose. The change has to do with how the hose tee attaches to the axle.
The same goes with the front hose as far as the banjo goes. If you don't have the banjos you may be able to get new ones at a local hydraulic hose shop or from a junk yard. But you may find there are different thread pitches used by different manufacturers for the hose to banjo fitting. Someone can correct me but disc brakes wouldn't be stock on a 70 so you may be dealing with the common short hose issue encountered when a later disc set up is used on a earlier truck. The hard lines on the cross member were routed differently when the factory went to disc brakes. Try a search in the 4x4 section on front brakes hoses.
Good luck.

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