I have a 95 Landcruiser and have just got the thing set up and ready to get out to the dirt. Problem is, I have been having problems getting correct power brake pressure. It has normal power brake feeling on regular driving but on downhill with a bit heavy pressure it is a very stiff pedal and difficult to stop. I did a new master cylinder, full bleed and just did all the pads but no luck? I also performed the test for the booster and all tested OK.

Any ideas? Please help. Thanks

 

That sounds like a booster to me... What test did you do? It may be in a failing state where as when you tested it it was doing fine, but then will fail at other times.