12' Gecko Build

dual piston? is has 2 bleeder screws?
are you bleeding them both?

IIRC these calipers are from a Ram 3500 - one bleeder.

Going to these heavy axles is an eye-opener. You've just increased your un-sprung weight by probably 50-75%. You're really going to notice even with your LS/LT. Driving mine is an exercise in patience. It's not horrible, it's just a totally different driving experience.

My E-brake has always been meh, but after all it's an e-brake - be a man - just hang on & ride it out
 
Tried one more thing for the night. I hooked up the motive power bleeder to do another few rounds of ABS bleeding. Visually a few bubbles but no real change in the pedal on a test drive. I mean it does stop i just have to go to 90% pedal if I want more than a gentle slow down. Its good enough for now for me to address other clean up items and ill come back to it.

Still need to center the steering wheel
Need to run my air locker lines
Need to change the bolt pattern so I can mount my spare
Need to shave my steering stops
 
Dual piston one bleeder

View attachment 427363
wondering if air is trapped in the bottom piston (it shouldn't but...), I'd try a couple of other things:

1. reverse fill the caliper, using an extraction syringe and hose to fit the syringe and bleeder valve tight, force brake fluid up to the reservoir.
Leave the reservoir cover loose (cover stuff around it because too much pressure too fast from the syringe and it'll geyser out of the reservoir) good to have a helper watch for flow and air bubbles.
Slowly press the syringe to force brake fluid back to the reservoir starting with the furthest caliper.

2. loosen the banjo bolt and reverse fill the caliper

3. remove the caliper, flip it upside down, use pucks or a caliper tool to keep the pistons from popping out while you bleed it.
 
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