Need insight into a brake system leak

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Wolfear

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Apr 29, 2018
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Have a 1989 Coachmen Royal motor home. John Deere chassis and a Ford 460 motor.
I have a fluid leak next to the frame mount on what I am assuming is the hydroboost unit. I'm thinking that I should probably get a kit to rebuild it but I'm not sure how to identify it to the parts place. Normally when I get parts we have to use an f350 as the reference. Any ideas are appreciated.
 
Freightliner Bought Oshkosh and has all the books with part numbers.
Just so you know. 1988 and up, Ford HD 460s are EFI with E4ODF trannys.
Oshkosh 460 up to 1989 was carbed with C6 tranny.
Oshkosh 460 1990 was EFI with C6 tranny.
So be cautions when looking for F350 parts.

 
rls7201 said:
Freightliner Bought Oshkosh and has all the books with part numbers.
Just so you know. 1988 and up, Ford HD 460s are EFI with E4ODF trannys.
Oshkosh 460 up to 1989 was carbed with C6 tranny.
Oshkosh 460 1990 was EFI with C6 tranny.
So be cautions when looking for F350 parts.
Click to expand...


Just to clarify, John Deere chassis became Oshkosh then Freightliner
 
  Rummage around on this website to find what you need http://www.powerbrake-drivetrain.com/medium-duty-truck-1/

  For more general info see http://www.brakeandfrontend.com/operation-diagnosis-and-repair-of-hydro-boost-power-assist-systems/
 
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