Just curious master cylinder K5 and 14 bolt

[brans87]

Just curious when doing a 14 bolt FF swap is it ok to keep old master cylinder or should it be upgraded to bigger? Just a random thought...

 

[Bent77]

I kept my factory 72 master cylinder. Never had any issues.

@6872xtc has it now. I don't think he's killed a bus full of nuns yet

 

[brans87]

I kept same one on mine just something that crossed my mind driving to work.

 

[Bent77]

Brake cylinder is the same approx size

Long term, I'd upgrade when it fails

 

[brans87]

When fails or the drum setup cost to much I will Go Disc then.

 

[6872xtc]

I did a 14FF with disc on a '90 K5 for a buddy, and he is still running the factory master after 3+ years.
And yes the old '72 still has the factory one.

 

[Bent77]

Kill any nuns yet?

 

[Hogback Fabrication]

I've always had the Blazer master cylinder on mine with a D60/14 bolt w/discs, brakes have always worked great

 

[JoshHefnerX]

If you're keeping drums you should be good. If you're swapping to disks out back, you may want to change the MC.

 

[chulisohombre]

Mine works fine with the drums and also when I upgraded to disk. I just gutted the rear portion of the master cylinder when I went disk. Works fine for me. No problems.

 

[CrpMag122]

Mine works fine with a 14 bolt and disc brakes in the rear.