Ok, so I swapped the rear third out in my tracker (this is bad, I can't rememebr, it's either a 93 or 94, lol).  Anway, I've reconnected the brakes lines to the drums, but I noticed there is a bleeder on the driver's side rear, but not on the passenger rear.  The line comes back from the front and goes into the passenger side, then out, and into the driver's side.  I have a Haynes manual, and it said on trackers, to proceed from the driver's side rear to the LSPV (Load Sensing Proportioning Valve).  WTF is that?  I can't find it.  I found some sort of block on the inside of the passenger framerail up front, but I didn't see a bleeder valve on it.  There also seems to be another junction block of some sort beside the master cylinder, but I didn't see a bleeder valve on that either. 

Any help would be greatly appreciated.

~Bryan

The rear brake line loops through the passenger side drum then goes directly to the drivers side.  Not my favorite style setup, but it works well enough.

Just bleed it from the drivers side rear.  It will take a little bit longer but you shouldn't have any problems.

That kinda what I though, but I wasn't sure when the Haynes manual said to proceed to the LSPV.  I couldn't any other junction blocks that had a bleeder... *shrugs*

You know, at the brake line manifold bolted to the passenger side frame, there is a terminator right next to the rear line. I wonder if you could run two lines to the rear...

Good question.

Anybody else confirm that I'll be good just bleeding the one rear on the driver's side?

Am I not seeing a bleeder somewhere else that I should bleed?  The Haynes Manual said to proceed to the LSPV (Load Sensing Proportioning Valve).  Where is that thing?  Does it have a bleeder on it?

I've always just blead from the drivers side bleeder screw. If you have a lot of air in the lines you may need to gravity feed a bunch of fluid, basically leave the bleeder screws open while you add fluid and it will drip out. Kind of a waste, but it flushes out the old fluid.

If it has a load sensing proportioning valve there should be somewhere around the rear axle. There should be an arm off it that attaches to the rear diff somewhere!

Hmm, well there's definitely nothing there.  The line runs straight from the pass side, across the axle housing and into the driver's side. 

I bled them last night.  Seemed to do ok.  Then I decided, well, while the truck is in the shop, I'll change the oil.  And while I'm up there, I'll go ahead and bleed the fronts too since the rears had been disconnected for some time. 

I went to bleed the pass front and the bleeder was gunked up with dried mud.  No cap on the bleeder.  Same with the driver's side.  Ugh.  So I took a small drill bit and tried to clean out as much dirt as possible.  Went to bleed them, and the passenger side pushed some sludge about and inch and a half into the tube, but I couldn't get it to do more than that.  The driver's side didn't get anything into the tube.  I was using the 2 man method, btw.  The only other thing I know to do is to get a vacuum bleeder and try that.  Anyone ever used one?  Do they work well?  Any other suggestions?

Thanks,
Bryan

I'd replace the bleeders, they aren't expensive. You need M10x1.0. I use a pressure bleeder and that seeems to work well.

Or just take them out and clean them good! I have never had to replace bleeders unless they get stripped for some reason!

I've never used a vacuum bleeder, but a pressure bleeder has always seemed to work well for me.  Really handy when you don't have the second man (or woman) around to operate the pedal.

Hi all
Here's the way I used to bleed brakes by myself get a rubber line that fits over the bleeder snug ,run it into a glass jar with enough brake fluid in it to keep the end of the rubber line submerged and losen the bleeder, get in truck and pump brakes watch the jar until you don't see any air bubbles, get out tighten bleeder, check pedal , repeat until you get a frim pedal.Works great.