Obs ford transmission brake

Discussion in 'F450/F550 & 4500/5500' started by ISPKI, Dec 5, 2018.

  1. ISPKI

    ISPKI Welder/Fabricator/Blacksmith

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    Hey guys. I have a transmission brake off of an early 90s F Superduty. Truck had a ZF5 behind a 460. Is there a difference between transmission brakes off of a 460 vs a 7.3?
     
  2. austin92

    austin92 Full Access Member

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    The only differences I know of on the 460 vs idi zf5’s was first gear and the bell housing. I couldn’t imagine the brake being different.


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  3. ISPKI

    ISPKI Welder/Fabricator/Blacksmith

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    That was my understanding as well. The brake has to have the same bolt pattern and accept the same output shaft else the 460 trucks would also have to have a different transfer as well.

    I have a guy coming to buy the brake from me tomorrow but he said a friend of his at a ford dealer claimed that the brake off a 460 truck has a different part number.
     
  4. ISPKI

    ISPKI Welder/Fabricator/Blacksmith

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    20181206_070708.jpg 2018120695071503.jpg
     
  5. ISPKI

    ISPKI Welder/Fabricator/Blacksmith

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    So the top one is my brake and the bottom one is what came off of his truck which he says is an OBS. Not sure what year, trans, or engine though.
     
  6. Thewespaul

    Thewespaul Supporting Vendor Supporting Member

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    The brakes are all identical, but they do not all use the same u joint. You can use a conversion joint no problem, but just something to look for.
     

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