Resevoir is full. Ok I guess I should have put this all in my first post, sorry. Ok first time it happened I kinda freaked because the way the pedal was slowly mashing and not stopping, I've heard that was the sign of a bad master cylinder, well knowing my truck is an 02 model i highley doubted it was the master cylinder so I bled the heck out of them and fixed the problem. I then tried to figure out what it could be and talked to a few people and we just guessed that for some reason on high angles air is getting in. I keep it topped off all the way to the full line because i know of the problem, but still on high angles they get the same way they were before. Now considering how many rockcrawlers are on this forum I'm just figured one of you would have a quick fix for me but I'm getting the vibe that this doesn't happen to many of you if any at all. So now that i have told you what i have done is there anything else besides topping off the level of fluid and bleeding the lines completly anyone can think of? I never saw any post on this problem before and never heard of any mod to fix the problem, that's why i had to post. I've been reading these forums for a long time but never had to post till now. By the way these fourms are great and have helped me many times, I was starting to wonder if i would ever get the chance to leave my mark by way of a thread.