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**Captainfab** · 06-20-2020, 09:50 PM

Yes you still need a proportioning valve with a hydroboost just as you do with a vacuum booster. You should be able to use the same one you had with the vacuum booster.

06-20-2020, 09:50 PM	#270
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: Hydroboost Mounting Plates Yes you still need a proportioning valve with a hydroboost just as you do with a vacuum booster. You should be able to use the same one you had with the vacuum booster. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE