1. #1

    Will a front disk brakes from a 77 CJ5 bolt onto a 74 CJ5 axle?

    I've recently acquired a stock '74 CJ5 project jeep, and have the opportunity to pick up a stock '77 CJ5 for parts. The '74 will be kept relatively stock for farm use as well as the occasional trip to town.

    Will a front disk brakes from a 77 CJ5 bolt onto a 74 CJ5 axle?-jeep-trailer.jpg

    My main motivation regarding acquiring the '77 is that it has disk brakes on the front end, versus drums on the 74.

    What are the differences between the two axles? Thus far I discovered that the spring widths may be different, but I have not found out if the front disk brakes, master cylinder and power assist from the '77 would be a bolt on to the 74 axle.

    Can anybody steer me in the right direction?

    Thanks much.

    Scott

  2. #2
    Join Date
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    Will a front disk brakes from a 77 CJ5 bolt onto a 74 CJ5 axle?

    Easiest way to determine is compare replacement parts. You could do this on a website lookup. Rockauto, OReillys, AZ...NAPA

    One thing to be some to be leery of is hat height on rotors. This doesnt have rotors but others will read this as general knowlege.


    Never look down on anyone unless you are helping them up - Jesse Jackson
    "Never look down on anybody unless you're helping him up" - Jesse Jackson

  3. #3

    Re: Will a front disk brakes from a 77 CJ5 bolt onto a 74 CJ5 axle?

    Quote Originally Posted by JPNinPA View Post
    Easiest way to determine is compare replacement parts. You could do this on a website lookup. Rockauto, OReillys, AZ...NAPA

    One thing to be some to be leery of is hat height on rotors. This doesnt have rotors but others will read this as general knowlege.


    Never look down on anyone unless you are helping them up - Jesse Jackson
    JP, thanks for the response. Unfortunately disk brakes were not an option in 1974, so there are not any replacement part comparisons available from the standard auto parts suppliers.

  4. #4
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    Feb 2009
    Location
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    Will a front disk brakes from a 77 CJ5 bolt onto a 74 CJ5 axle?

    Never mind. Sorry I understand what you are asking now.

    My initial response was not what you needed.

    From 1972-1983, the Dana 30 was used in the CJ-5.

    Last edited by JPNinPA; 10-23-2020 at 05:13 PM.
    "Never look down on anybody unless you're helping him up" - Jesse Jackson

  5. #5

    Re: Will a front disk brakes from a 77 CJ5 bolt onto a 74 CJ5 axle?

    Quote Originally Posted by JPNinPA View Post
    Never mind. Sorry i understand that you are asking now.

    My initial response was not what you needed.

    From 1972-1983, the Dana 30 was used in the CJ-5.

    DIY Jeep CJ Front Disc Brake Conversion under $100! Made From Spare Parts! - YouTube
    Thanks for the link!

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