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Front brakes lock but not rear?

1.6K views 1 reply 2 participants last post by  Enola Gaia  
#1 ·
So I lifted my 2002 prerunner (without anti lock brakes) a while ago, 2.5 in spacer lift in the front, 2 in shackle lift in the rear. I also installed a longer rear brake line and the appropriate BPV adjustment bracket.

Now the issue is when I stop hard only the front will lock up not the rear. Am I wrong, but I thought they should both lock up showing even braking?

This test was on level ground without a load in the bed.
 
#2 ·
Sounds like the brake proportioning valve is not working or badly out of adjustment .... :thinking: