Using van hydroboost - will van master cylinder work?
 

Is anyone using the master cylinder off their hydroboost donor vehicle? This came off a 2009 express 3500 van. If so... The van did not have a proportioning valve. Do still need to run one on the C10? Photo of van's master cylinder is attached

Re: Using van hydroboost - will van master cylinder work?
 

I would say yes.

The van is a full bodied vehicle and is going to gave a lot more weight over the rear wheels than a pickup does.

I would suggest an adjustable prop valve, so that you can tune what it really wants, rather than trying to match an off the shelf replacement.

K

Re: Using van hydroboost - will van master cylinder work?
 

I’m using one off a 2009 silverado 2500HD in my 72 K20. I ditched the plastic master cylinder and used a new Napa master cylinder for a 72 K20 (my truck) on the Silverado HD Hydroboost unit which allowed me to use the OE proportion valve from my K20.

Hope that helps.

Re: Using van hydroboost - will van master cylinder work?
 

does the standard C10 master cylinder bolt right up to your 09 hydrobooster?

Re: Using van hydroboost - will van master cylinder work?
 

Mine did.

Discs front and rear? Or drums? The master cylinder will have a residual check valve for drums.

Re: Using van hydroboost - will van master cylinder work?
 

Disk/disk.

I ask because from my research the newer (07ish and up) GM hydroboosters havr a different bore where the master cyl attaches