Brake Master Cylinder Swap.

[pontiacgp]

Clutch.....only a $1 bill?.....talk about being cheap...😀

 

[Clutch]

Clutch.....only a $1 bill?.....talk about being cheap...😀

I have a wife and 2 daughter's 4 Cutlasses and the square body crew I was lucky I had that!

 

[pontiacgp]

. Most certainly, the traditional will grab first and the car will pull to that side in a hard brake. I had an experience around the time of that Bendix letter I gave the link for when the car did a 180 into the incoming lane avoiding a deer in the wee hours of the morning. Fortunately, there was no one else on the road, but I don't doubt that kind of thing was happening. Not checking the grooves might save money short term, but it would open them up to a nasty product liability class action lawsuit.

front brakes will not put a car into a spin even if one side is pulling

 

[Clutch]

front brakes will not put a car into a spin even if one side is pulling

Beer will

 

[pontiacgp]

Well today I put the new Master and the pipes between the master and the proportionig valve are not the same, the front pipe are more reduce and the rear are more big......sorry for my english. ...

did you read Clutch's post?. He has the 78 just like yours and changed the brakes lines from the master to the proportioning valve to use with the same master you want to use.

 

[wnagel]

I'm not sure exactly what you mean by "pipes". The brake lines should all be the same 3/16 inch diameter. Otherwise, someone has changed the stock hydraulics and modified your brake system. (Maybe it is easier to find metric brake lines in Chile?) However, the fitting nuts can be different sizes. That was probably done on the assembly line so the workers didn't put the wrong brake line in the wrong place. Changing the fittings and reflaring the lines is no big deal, but if the brake lines are different diameters, you may have a problem.

Sorry I talk about the fitting nuts.....are different...

 

[pontiacgp]

Sorry I talk about the fitting nuts.....are different...

if you can get the nuts you need do you have a flaring tool you can use?. It may be easier for you to get new lines

 

[wnagel]

I'm not sure exactly what you mean by "pipes". The brake lines should all be the same 3/16 inch diameter. Otherwise, someone has changed the stock hydraulics and modified your brake system. (Maybe it is easier to find metric brake lines in Chile?) However, the fitting nuts can be different sizes. That was probably done on the assembly line so the workers didn't put the wrong brake line in the wrong place. Changing the fittings and reflaring the lines is no big deal, but if the brake lines are different diameters, you may have a problem.

Sorry I talk about the fitting nuts.....are different...

 

[pontiacgp]

Is there any adapter that you can use on the master to use the existing brake lines?

 

[Clutch]

if you can get the nuts you need do you have a flaring tool you can use?. It may be easier for you to get new lines

Yea like I said I put used lines in mine for a factory look. By the way all 4 of my Cutlasses have the same setup 2 79s the 78 and the 87 all the same thing so if you don't want to make lines go to a junk yard and get them off of any G-BODY and put them in your car I'll see if I have a pic

them on the 87 Cutlass so I'd say 78-87 is all like that and no I didn't change them all just the 78 witch was actually made in mid 1977