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Old 08-02-2004, 02:39 PM
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rubber hose to modulator ok?

Hello again everyone.

About a week and a half ago me and dear old dad started putting the new components in the 77 Chevy 3/4 I gave to him. He bought a new motor, trans and transfer case. We scoured what we could off of an 85 Truck and had some stuff left over on the 77.
It's coming together albeit slow.

The vacuum tube going down to the modulator is pretty nasty. Wondering, for simplicity sake...could we run rubber hose instead of a steel line?

I'm going to have more questions we progress.

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Old 08-02-2004, 02:58 PM
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steel line

you want the sleel line in there you don't want that rubber line deteriorating and coming apart or sucking closed. run steel line.
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Old 08-04-2004, 08:14 AM
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I use steel brake line and rubber at the ends.

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Old 08-04-2004, 08:01 PM
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A common failure of the use of "all" rubber hose is the side wall of the hose.

As mentioned the vacuum hose will collapse and flex under vacuum increase decrease. I've seen many hoses with splits in the long hose from the flexing
Dont worry how old you are... it is the mileage on your body that adds up.
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