Originally Posted by lj_wil
Looking at the Vanco brakes, why only the front disks?
Because when you get to the point where you start thinking about better brakes, it's usually because your OEM brakes are failing due to a higher center of gravity and bigger rotational masses of larger tires.
So you have a two fold issue to solve in that the larger heavier tires are harder to slow down and the weight transfer to the front brakes really brings out all of the deficiencies they have.
That means your front brakes are now being asked to do work they were never designed for and they perform poorly at best.
I'm thinking to really update your brakes you would need all 4 disks
Properly maintained and adjusted, there is nothing wrong with rear drum brakes other than difficulties in adjustment and maintenance. They do fade easier, but only at the extreme end of day to day braking scenarios.
There is no pump in the TJ that affects braking performance other than the ABS pump and no one really knows how to upgrade or mess with that, not that it would make any difference.
However, the TJ does come from the factory with a very fine and high quality dual diaphragm booster and master cylinder. Combined with good brakes they are very capable of locking up 37's easily with no other modifications to anything.
and probably thicker brake lines.
Thicker brake lines if you are referring to the diameter do nothing for you. In the testing I've done, not even stainless steel braided line outperform the OEM lines if they are functional.
What have you done to upgrade your brakes?
Personally, I've done every brake mod known to man practically. Outside of some little gadget I saw once that bolted onto the master cylinder, I've done just about everything else.