explorer 8.8 in an a-body: experience needed

You aren't listening nor understand how the system works, you do not do front brakes twice on a 60/40 designed system.

You think that when you hit the brake pedal it has enough fluid to activate the piston slack and then put the correct amount of psi on the pads per the amount of travel on the pedal, it does not, and that is why you have done brakes twice at the front and zero at the rear.

Since i have been doing brakes the rears will always go 1 past the front, (60/40 or 70/30 bias) not 2 past (95/5 bias), anytime you go beyond 1.5 times on front brakes and the rears are still in there they aren't working right or NOT ADJUSTED properly, and there is no adjustment on discs, they use different masters and valves to keep a small amount of psi on that system so the pads are always within slight contact to the rotor and there is no loss of fluid pressure to take up slack and actually apply pressure. You can only apply so much pressure with the stroke of the pedal, it doesn't magically add in additional fluid

Think of it this way, every time you hit the brakes you may move lets say a ounce of fluid...
Your wheel cylinders are not even close to the cavity of the piston in that caliper, and now when you release the pedal the psi releases and the piston moves back, that ounce of fluid isn't enough to take up the area needed to get the piston back against the rotor and then add additional pressure to work the brakes clamping force.

Now add in the minute amount of wear and now you have less force applied to work the brakes, gaining you less pad wear and less braking force, but saving you money on not having to do rear brakes.
As long as i have been working on cars and all thru my schooling NO car is set up to have 90/10 or 95/5 bias and change front pads twice and still leave the rear brakes in, that is a red flag that the rear brakes aren't working properly.

Never have i had a car that went more than 1.5 on the front whether it is a drum drum, or disc drum, or disc disc system, not even customers cars have i done front pads on twice, it usually always every other front pad change the rears are done also.
If i did do front pads on anyones cars twice there has always been a issue with the rear brakes, and either adjusters not working or AMAZINGLY someone decided you can just put discs where drums were and nothing else was needed the master was the right master for the increase fluid psi volume and valves were all perfect for the upgrade which always found out it wasn't a upgrade at all, but just the front brakes are now doing more work.
This is a huge learning experience with the 4x crowd and the jeeps that had disc drum and now have disc disc.


Im leaving you with this and im not going to continue with this.

The front uses 60%
The rear uses 40%

You have a difference of 20%

Knowing that, do you think you should have went thru 2 sets, and think you don't have a problem..
Now lets take into consideration what the new percentage is you have..

It is not 60/40, not even 70/30, most likely not even 80/20, probably like 95/5

50/50 would be if they wore out evenly, 60/40 and 70/30 is when you have to change the rears just before the fronts again for the 2nd time..
2 times and the rears are still doing nothing, thats not a 60/40 or even 70/30 split...
Start measuring the heat at the front and rear rotors, try pumping your brakes and then hitting them and see if you can even feel the difference when that happens.

Not saying you're wearing out brakes faster, but that is a fact of the problem for the front since the back isn't doing anything, but your front brakes are doing all the work and somehow you aren't seeing that as a problem..
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