Classic Chevy Brake Master Cylinder Kit | Wilwood | 1963-1987 C10 Install

[@matt_1969ChevyC1o]

Above and beyond the performance gains, this cleans up the engine bay a ton. Never fails to see a guy dump $10k+ into an engine compartment and leave the rusted up stock master cylinder. Like a turd on top of a t-bone steak.

[@Nowayjose-z2r]

You bench bleed because some cars (many back in the 70's) the master isn't level and you can't get all the air out. No other reason then that. If the master is level in your vehicle no bench bleeding is necessary.

[@farshidfaraji6284]

awesome, can I use the same part number for chevy k5 blazer 78? i have wilwood disk brake at the front, and factory drums at the rear

[@orangesharpy]

So does this Wilwood proportioning valve assembly also act as a distribution block? So, In other words you can get rid of the factory distribution block because this has 2 front brake and 1 rear brake out? Thank you for the video!

[@dmastrino]

What's the fitting for the rear brake line so it screws into the proportioning valve?

[@javierargumedo3]

hello! would you tell me where to run the wires from pressure switch?

[@bowtihi6830]

I found some specs on the proportioning valve to remove the brake switch and put a plug in it’s place. Should I use any type of pipe tape?

[@PHDZ7]

Excuse me I wanted to see if they sell a kit for obs silverado 97

[@flinch622]

Proportioning valve: I assume this is a disc/drum setup?

[@danielviorato1333]

Did you guys Modify the fittings that go from the truck on to the proportioning valve? I have a 72 Chevy c10 ..

[@CJClassicTrucks]

yes I had to change the rear brake line fitting and make it smaller to adapt it to the proportioning valve.

[@davidmorales9232]

I'm having the same problem. Video does not get into the modification of the rear brake line.

[@peterbilt6662]

@@davidmorales9232 might need some adapters

[@savageblades360]

What size bore would you select to run D52 Calipers front and rear?

[@kevinmenue8883]

Can you add the booster to a stock master cylinder that was origially not power brakes?

[@CJClassicTrucks]

no you can not the master changes for booster

[@peterbilt6662]

@@CJClassicTrucks hey i have a question, can i replace my 1inch bore piston with a 1 1/8 inch bored piston? I want to use the same master cylinder but i just want to replace the bore size for my c10

[@BlackcK-gm3zi]

Awesome vid , what’s the part number and cost? This is exactly what I need to run my 4 wheel willwood disk set up.

[@CJClassicTrucks]

black69c10 the link for the part is in the description. Thank you for watching.

[@PhysifistEngineering]

I wouldn't recommend this master as Wilwood themselves have stated they don't make a bore large enough to support large C10 calipers.

[@wrosales1983]

I need the proportioning valve when I have dics back and fron?

[@CJClassicTrucks]

i would install one in

[@jesser214]

Will I need the prop valve if I have rear drum brakes on my 96 silverado?

[@bowtihi6830]

I have a wilwood master cyl. And adjustable prop. Valve. The brake light switch is pushing out of its setting on my very first test drive and the rubber boot over the spade connectors disintegrated before I was ever able to get the brakes working. I hear you mention plugging the port. What is the thread size on the switch. And should I use any kind of thread sealant.

[@texashammer6092]

Did you plug the center FO port?

[@CJClassicTrucks]

yes i did

[@davidgonzales278]

HOW 2 DO IT ON 84 GMC C15100

[@MrSticks9999]

That IS NOT a proportioning valve!! That is a combination valve. With disc brakes, the combination valve may contain a proportioning valve.But the proportioning valve is a separate part/piece.

[@PhysifistEngineering]

DO NOT use this master cylinder on a C10 with big brakes. Wilwood does not make a bore size large enough to be compatible with the large front calipers. Your pedal will be soft and you won't generate the full power the front calipers are capable of. I've done 3 C10s with these masters, all with the same issue. I spoke to Wilwood and I quote, "You need an upgraded caliper with multiple smaller pistons. Our master cylinders will not be enough for a standard large single piston caliber found on C10s."

[@ck1insac]

Have you tried this system with their D52 calipers? I’m installing now on my 72 C10 and having a soft pedal issue. The D52’s are dual piston.

[@PhysifistEngineering]

@@ck1insac so you have this master and the D52s and it's still soft?

[@ck1insac]

@@PhysifistEngineering yeah, but it’s an entirely new brakes system with new lines etc. So trouble shooting everything trying to get a hard pedal. I must have air in their somewhere still.

[@PhysifistEngineering]

@@ck1insac are you using a 10 lb residual to the drums in the back? How well are the drums adjusted?

[@PhysifistEngineering]

@@ck1insac if all of that is good, I'd try a 1.25" bore master cylinder from somewhere else.

[@RS-gh2mf]

No mention of how to adjust it 👎

[@danocamaross]

That was my only question after watching this video.