This video explains how lifting your vehicle can impact your braking and also explains how the load sensing proportional valve works. This video also pertains to Toyota Pickups and 4 Runners from the same era.
Great video. This is a step that MOST people miss unfortunately. It's a huge safety risk as well. I hope more people watch this video and address the LSPV relocation or adjustment. Keep the videos coming!
There is a bracket you can buy and fit it which then alleviates all of the adjusting you are doing.. Here in Australia, it is a requirement and law that any lifted vehicle over 50mm/2" has to have this bracket fitted or it will NOT pass a roadworthy for registration.
I will definitely have to do this adjustment. Have had my 80 lifted for about 3 years now. And have never touched that valve. I have a 2” lift, am I supposed to lower the valve to increase pressure to the front? Is that the desired outcome?
@CruisinMiles the best way to adjust for brake bias is to either buy the gauge I used at the end of the video or go to a good brake shop. The thing I noticed what may seem like a small adjustment has very big differences when it comes to bias. That’s why a proper gauge is very important.
That 90 to 96 mm in the FSM is for a non lifted truck. Completely out the window once you lift the truck. You had a bit more of the adjusting bolt left to go. Also, just re-bend that arm once lifted, easy peasy.
I just picked up an lx450 it has a 2.5” lift the breaks do feel like they need more stopping power, I’ll have to see if this was something they missed, Good content by the way
Thank you very much for this video. I have been owned a lifted Hilux for more than 12 years to find out why the brakes are bad. Just jacked up the vehicle and tried to stall the engine in 1st gear. Adjusted the lever higher until it had brake power in the rear. I did a road test, and it is fine now.
I may be replacing this valve as the valve that is on my HDJ81 is pretty old, not in bad shape but I have brand new parts. Some people actually delete this valve altogether. I need to do more research before I delete it.
It’s on all 80s most companies that make lift kits sell an adjustable bracket but people cheap out and don’t buy it, also some people delete it so your brakes work like a normal vehicle.
