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Thanks for the info. I already read about the differences between DOT3/4/5.1 and DOT5. Tthat article was a good summary of the differences. I had another mixup with Orielly's... they ordered me another hydroboost instead of MC. So last night I had them re-order the MC for the one that I...

Can you show me a picture of what it is supposed to look like? I see some decals on ebay... want to see if they are it and where they go. Thanks! K

BunkerBuilder... Can you reply back with your source for the DOT5 fluid and the MC? I put a call into Orielly's and they will check and see if they can get me a DOT5 compatable MC. For future reference I am going to stamp on DOT 5 ONLY on the top cover of the MC so this doesn't happen again...

Here is the update for today. I plugged the holes in the MC for the front/rear and pressed the pedal. No pedal pressure builds up. I then switched out my old master cylinder with the new one and plugged the holes in it. Within two pumps, I blew the plastic plugs out of the hole, and...

Both were purchased at Oriely's. Both are rebuilt units.

I think thats the best course of action. I will plug the ports and see if I get pedal pressure. If not, then I will replace the "new" master cylinder with the original one and see if that gives me pedal pressure. *Note to self... don't perform two operations (hyrdo boost and master...

*PROCEDURE* I finally had a chance today to bleed everything. I left the master cylinder on the truck but removed the brake lines. I then bleed the master cylinder. I connected the brake lines and vacuum bleed all the lines (starting at RR/LR/RF/LF). The brake pedal pressure hadn't changed...

Ohh duh! So obvious now with pictures. You da man! Thanks! From experience... is it hard to push on the rod to "simulate" the brake pedal? Is there a lot of resistance?

Please post a picture of the "U" your talking about... I can't visualize where the line is supposed to go... I will read the manual tomorrow on bench bleeding as well. What is the valve your referring to? Thanks for your help! K

I should have stated that there is very little resistance and it very easy to push to the floor. It will return slowlly on its own... but I think thats due to the hydroboost. *shrugs*

No I did not bench bleed it... do you think its worth pulling apart and bleeding it that way?

I had a bad hydroboost on my M1008. Being a practical kind of guy that I am, I decided to replace the Master Cylinder along with the Hydroboost at the same time. Pulling them off was a cinch... I had two new replacements ready to go and installed them. I added fluids to both the master...