What I have done for starters and to be able to try out the drivability of my truck is: I used 1/2" conduit pipe and a bender for my lines and made short connections with the above mentioned rubber hose.
Waiting for my Vac. from the rebuilder. I plugged the end of the vac line and ran the engine for a while. Didn't seem to have any leaks and the hose didn,t collapse yet.


57 GMC LCF 370
55 John Deere 40-W
59 John Deere 430-W
2000 GMC 4x4
56 John Deere 420-W
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