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Re: GM Hot Hydroboost
Posted to HD/Fleet Forum on 7/21/2020 1 Reply

Rex, both the gear and the hydroboost are a restriction in their "at rest" state. Even the lines and fittings have some restriction. Normal pressure with warm fluid and no steering or brake assist is around 50-60 psi. Lower is better, but I've not seen a syste... Login to read more.

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