hl replied:

Hi,
I wouldn't fiddle with that as it won't solve your problem. If your front wheels lock up easily I would firstly check the load on the tow ball. Sounds like it is way too high.
Cheers

Leroy replied:

Usually when you get a lift kit installed the brake bias valve is adjusted. I'm pretty sure ARB adjust this when they do lifts as should others. I would go back and have a chat to your suspension supplier for a start.

Leroy

JamieMac replied:

I have just done this and some trial and error braking post fitting a 2.5 inch lift.

I installed and extension to the mount on the diff to place the fixed arm that the spring is on about 2.5 inches higher. I used a length of flat bar and drilled appropriate holes to fit it together. I used flat bar just in case there is any contact due to the increased height above the axle.

Response is similar to original if the axle end of spring is in correct position to the lever when car is empty and static. But the stiffer sprins in lift do effect it.

This is as good as it gets unless you remove and T piece the brake lines or install a manual adjuster to the bias lever. Both of which I considered before going this way.

I would not play with the allen key setting.

Cheers
JamieMac

mattie replied:

Hi
thanks for the replies i will have to have another look at the set up because the spring i thought tensions the load valve so i removed the spring which i though would create more braking on the rear and it did the opposite.
I forgot to say before that the suspension fitter did not adjust the valve (because i thought i would seek some advise as to not waste as much time doing it).

Mattie