that's da pump (HCU); so far. by consensus the best re man 4WABS Hydraulic Control Unit (HCU)s are from bba-reman.com
see
http://fullsizebronco.com/forum/showthread.php?t=122402
I wrote; BBA quotes $200 plus shipping for repair of/my HCU; "It usually takes about 3 days from receipt to repair..."
Used price locally is $150.00; 60 day guarantee.
Babaganoosh wrote; "...all I can say is
BBA all the way.
BBA did the rebuilds on ABS Modules for my old VW/Audi Shop. They were super inexpensive, fast, friendly, and only had one issue with them ever and it was 50% my fault anyways (keep in mind it's VW stuff anyways).
You may be able to get one from A1 cardone. Raybestos dropped off the map on ABS Modules. Just regular brake parts really..."
Also, do those other tests to ensure that the pins are in-place..etc before doing that swap; and you'll need to Bleed that system since the HCU is coming out.
4WABS Hydraulic Control Unit (HCU) Bleeding Procedure (DIY)
Source: by SigEpBlue (Steve) at
http://www.fullsizebronco.com/forum/showthread.php?t=106364
4WABS Hydraulic Control Unit (HCU) Motor; "...pulled a motor off a crown vic, the unit it self was differant but the motor was the same. Cost me 20 bucks. OH and the wire conector was differant as well but I just drafted the one from the nfg motor on to the crown and it works great. That was 4 years ago. no problems yet...its only 2 screws that hold it in. And best part is it doesn't open the system so you won't loose fluid and won't need to bleed it. Now all you need to do is go to the bone yard and find one..."
Source: by bossind (boss, Steve) at 4WABS Hydraulic Control Unit (HCU) Motor; "...pulled a motor off a crown vic, the unit it self was differant but the motor was the same. Cost me 20 bucks. OH and the wire conector was differant as well but I just drafted the one from the nfg motor on to the crown and it works great. That was 4 years ago. no problems yet...its only 2 screws that hold it in. And best part is it doesn't open the system so you won't loose fluid and won't need to bleed it. Now all you need to do is go to the bone yard and find one..."
Source: by bossind (boss, Steve) at 4WABS Hydraulic Control Unit (HCU) Motor; "...pulled a motor off a crown vic, the unit it self was differant but the motor was the same. Cost me 20 bucks. OH and the wire conector was differant as well but I just drafted the one from the nfg motor on to the crown and it works great. That was 4 years ago. no problems yet...its only 2 screws that hold it in. And best part is it doesn't open the system so you won't loose fluid and won't need to bleed it. Now all you need to do is go to the bone yard and find one..."
Source: by bossind (boss, Steve) at
http://fullsizebronco.com/forum/showthread.php?t=105437&page=2
4WABS Hydraulic Control Unit (HCU) pic in 93-96
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net
http://www.supermotors.net/vehicles/registry/media/575358_1
