1996 Cherokee drum to disc conversion... not much better braking
01-30-2014, 03:50 PM
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Model: Cherokee
1996 Cherokee drum to disc conversion... not much better braking
Gentleman,
Converted rear drum to disc using a complete Teraflex kit 4354420/4354400. Braking seems to be the same . Do I need to install a adjustable brake proportioning valve. Tire sizes are only 30" 2" lift kit, What else can I do?
Converted rear drum to disc using a complete Teraflex kit 4354420/4354400. Braking seems to be the same . Do I need to install a adjustable brake proportioning valve. Tire sizes are only 30" 2" lift kit, What else can I do?
01-30-2014, 03:54 PM
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
That's strange. The JY conversion I did on the 88 was very noticeable.
But, I swapped the prop valve guts from a ZJ into my prop valve.
But, I swapped the prop valve guts from a ZJ into my prop valve.
01-30-2014, 06:22 PM
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
01-30-2014, 07:42 PM
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The factory XJ valve limits the majority of the brake pressure from going to the rear brakes..........By design, drum brakes require very little brake pressure compared to disk brakes.........By using the limited rear pressure from the stock valve to try and operate a disk type caliper, you would have less braking power at the rear than if you kept the drum brakes.......
01-31-2014, 04:44 AM
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If the terraflex kit did not come with a new proportioning valve, you need to get one............
The factory XJ valve limits the majority of the brake pressure from going to the rear brakes..........By design, drum brakes require very little brake pressure compared to disk brakes.........By using the limited rear pressure from the stock valve to try and operate a disk type caliper, you would have less braking power at the rear than if you kept the drum brakes.......
The factory XJ valve limits the majority of the brake pressure from going to the rear brakes..........By design, drum brakes require very little brake pressure compared to disk brakes.........By using the limited rear pressure from the stock valve to try and operate a disk type caliper, you would have less braking power at the rear than if you kept the drum brakes.......
Who's/What type of proportioning valve do I need?
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01-31-2014, 05:00 AM
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Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Just use internals from a 4 wheel disc ZJ in yours.
Last edited by cruiser54; 01-31-2014 at 06:38 AM.
01-31-2014, 09:17 AM
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Year: 1995
Model: Cherokee
Engine: 4.0
The factory XJ valve limits the majority of the brake pressure from going to the rear brakes..........By design, drum brakes require very little brake pressure compared to disk brakes.........By using the limited rear pressure from the stock valve to try and operate a disk type caliper, you would have less braking power at the rear than if you kept the drum brakes.......
I beg to differ. Every disc swap I've done without changing the prop valve, the back brakes work too good. Without the prop valve change the back tires on my jeep and my neon lock up before the front. That's the only reason I see for changing the valve.
But I noticed a nice difference in changing to disc.
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