bypass abs

[hummin cummins]

im bypassing all the abs brakes on the truck and was wondering if i have any reason to have to use the piece on the top of the rear axle on the driver side or if I can completely bypass it.

[sdstriper]

You mean the part that is on the drivers side frame?

[RumbleFish]

Yeah, there's penty of reasons to keep your abs box. Door stop, hammer, wheel chock, etc....I'm sure you can come up with something

[TWorline]

Go ahead and bypass it, don't forget to unplug the abs computer behind the glovebox.

[hummin cummins]

the two rear drum lines go into it and then there is a rubber hose going to the valve on the frame and i am also guessing that it is a breather hose that comes off of it? I think im gonna try bypassing it, if it doesnt work ill just go from there
thanks for all the info

[PToombs]

Not that! The Y on the axle stays. That is the splitter for each side, and the axle vent. The bolt is the vent, and the hose is on that. Only bypass the valve on the frame above the axle. And unplug the box behind the glove box, which will eliminate unwanted lights.

[sdstriper]

The valve on the frame is definately all you need to lose, door stop, paper weight etc. And unplug the ABS controller behind the glove-box. Here's some fitting numbers for you, Napa parts, 202 x 5 and 252 x 3. These require some bending of the lines I believe. Daniel Pucket has some P/N's that don't require bending of the brake lines I think.

[sdstriper]

Here they are Napa numbers again, supposed to be no bending required, I wouldn't know for sure though... wea7917 and wea7828

[hummin cummins]

well got done bypassing the abs stuff and i installed a new tee where the old one used to be. bled the brakes and the pedal is still soft. im guessin that there must be some air bubbles. the pedal almost goes to the floor but when you pump it it gets firm
thanks

[hummin cummins]

the pedal almost goes to the floor until it works and when it is almost to the floor the brakes barely work... if i pump them they will get firm and work awesome but when i let off completely it gets soft again

[sdstriper]

I would bleed the whole sysytem again, in fact I would replace every drop of fluid as well. Brake fluid does get moisture in it which contributes to poor quality braking. I plan on going through the brakes on one of the trucks and using the spendy stuff, synthetic, less prone to moisture etc. The price will kill you though...

[hummin cummins]

thanks for the idea ill run through and do that tomorrow and if it doesnt work im just gonna throw an anchor out the window and save myself some stress

[dpuckett]

there is some flexing/ bending of the lines required. There is enough room to operate under there that I dont thinnk it is an issue.

DP

[mojo]

First reply here so let me give it a shot. I fought ABS and poor breaking for a while. Took it to a good break guy and with a little bleeding and some TIGHT adjusting they have neve worked better. I would bleed, adjust check and adjust until you can rule out they are not adjusted properly.

[charger 69]

I may be all wet but I wonder if the flexable brake lines are a problem.I have the same thing with a spongey pedal and I have replaced everything except the power booster and the 3 rubber lines and have blead it so many times I lost count. Since I eliminated the anti-lock valve the truck stops twice as good as it did before and the rear doesn't lock up.