Quote:
Originally Posted by augr
Looks like my master cylinder needs to be replaced so I am wondering if anyone has used one of the larger bore models?
I've been reading that the larger bore enhances braking power by increasing line pressure and supposedly stops better and gives you a more firm brake pedal. But I haven't read anything about someone actually using it.... mostly speculation it seems and hearsay on the negative effects.
Has anyone gone the larger bore route and did you notice any difference in braking power? Any negative effects like leaking calipers due to more pressure? I've never had any issues and I've installed modern master cylinders and brake boosters on 4 wheel drum brake vans from the 60's without those options from factory.
Found this one that is pretty big comparatively.... RAYBESTOS Part # MC390542 Professional Grade; Bore Size=37mm Number of Ports=2 and it's just shy of $85 compared to the ACDELCO which is at $260. That's a huge difference!
I know cheap parts aren't always a good solution but it's not like Raybestos doesn't have brand equity.
What do you guys think?
Forgot to mention... 2001 Tahoe 2x4 w/5.3L
Cheers!
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what is wrong / defective with the master cyl. ?
pedal to the floor is usually the brake lines leaking /rusted. don't take much of a leak for this to occur.
sometimes its the abs valve unit.
with 4 wheel disc brakes in the tahoe you should not need a larger master cyl. the abs might come on more often with the greater pressures when you brake.