

I've wanted to gather the stuff to do the WJ brakes on my XJ, but alas i haven't. From what i have read it's worth the trouble compared to stock. The vanco is like $1000, just cant see spending that on a stock axle.
Is it possible your booster is weak? Vacuum leak?
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What about doing the aftermarket booster/ corvette style master cylinder kits. Navajo brakes is who started it all. Now there are tons of company's that offer the setup for just about any vehicle. upgrades to a better double diaphragm booster and modified corvette style master. You would probably do away with the factory proportioning valve and run an adjustable to dial in the rear brakes.
http://www.peterverdone.com/archive/files/hydraulic system theory.pdf
I went to the google machine...


Each one adds 10 HP, right? [emoji12]
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The BlewTJ had the vents and after I painted them they looked fine.