Archived 1991 rear ABS(Rapps or Razz valve)

[Bradleys]

1991 250 turbo diesel break pedal fades all the way down to floor. Replaced master cylinder and did not work. Is there a block off valve for the rear ABS rapps or razz valve?#@$%!

 

[PToombs]

Just remove the valve and hook the lines together. If you do a search for ABS delete you should come up with part numbers for the fittings needed. If your lines are getting bad, replace them and you can go direct to the axle hose connection with no adapters needed. You will also need to unplug the ABS black box in behind the glovebox to make the lights go out.

Best mod I ever did, pedal is firm and the truck stops on a dime.

Good Luck!

EDIT!

I just did a search, and nothing came up! If you go to 1stGen.org • Index page and search ABS delete, I know the part numbers will come up in the 1st thread listed. I just looked the other day and found them.

I went over and got them, NAPA numbers,

WEA7917 is $4. 99

WEA7828 is $6. 80

 

[Bradleys]

thanks man fix it