Power Disc Brakes Vs. Disc Brakes

Discussion in 'Technical' started by jpollard, Aug 25, 2003.

  1. jpollard

    jpollard Member

    Joined:
    Aug 25, 2003
    Messages:
    717
    Likes Received:
    3
    Trophy Points:
    0
    Location:
    Montana
    Vehicle:
    1977 Factory 302 Mav. 1970 Cougar Eliminator, 1975 302 Grabber, 1976 4door 200...and still looking
    Hot Chicks!! or Power Disc Brakes Vs. Disc Brakes

    I want to put a 4 speed top loader in my 77 302 2dr Mav but i am having a hard time deciding if I want to give up my Power Disc Brakes. What would I have to change to get rid of the power brakes for the manual...is it just a matter of removing the power booster and installing a manual master cylinder, do I need a different brake pedal? Does the clutch pedal have to be off a mav with disk brakes or can it be a drum brake car? Do I have to change proportioning (sp) blocks....... Any other tips would be a big help. I have seen a lot of info on the drum to disc change but not a lot on the power disc brake to manual disc brakes. Is it worth it to change the brakes for a 4spd? Any info would be much appreciated.

    Anyone want to buy a power booster setup?? :)

    ....and thanks to Sam for selling me the car, I love it!

    Thanks.
    JP:D
     
    Last edited: Aug 25, 2003
  2. Old Guy

    Old Guy Member

    Joined:
    Mar 9, 2002
    Messages:
    1,291
    Likes Received:
    3
    Trophy Points:
    95
    Disc Brakes

    Just got through doing this same thing on a Fairmont, should be basically the same. Got a manual master cylinder mounting plate from a Capri. Removed the booster and installed it with new cyl. also got the brake pedal rod with the new cyl. Power one is different, also ran into problem with different size line fittings from cyl. but an adapter and some new tubing and fittings, double flared, cured that. Bled the system and they work great(kept the power prop valve). Did a disc conversion on our street Mav with manual brakes and they did not work out as well, need to work on that problem. Rod length and fittings should be your main problem on the Mav but maybe someone else here can give a bit more input.
     
  3. jpollard

    jpollard Member

    Joined:
    Aug 25, 2003
    Messages:
    717
    Likes Received:
    3
    Trophy Points:
    0
    Location:
    Montana
    Vehicle:
    1977 Factory 302 Mav. 1970 Cougar Eliminator, 1975 302 Grabber, 1976 4door 200...and still looking
    Thanks for the info old man...:) Love the handle. I am so confused on this swap. Any idea if the standard brake pedal and clutch will work with the changes (from a 6 cylinder) I a looking at buying a set of pedals but I dont know if they are the right ones or what ...

    Like I said, I am confused....

    JP
     
  4. Mavaholic

    Mavaholic Growing older but not up!

    Joined:
    Mar 9, 2002
    Messages:
    14,987
    Likes Received:
    196
    Trophy Points:
    258
    Location:
    Live Oak, FL
    Vehicle:
    Original 72 Sprint Owner, 71 Comet GT, 57 Ranchwagon, 57 4 dr Wagon
    You cannot use the stock Maverick power brakes and a clutch without alot of fabrication. The pedal on the power brake car comes down the left side of the column where the clutch needs to be. All Comet and Maverick pedal assemblies are the same. The linkage under the hood however, is not. Cross shafts, frame and engine pivot mounts are different between the 6 and 8. If you have fabrication skills, almost anything can be made to work. If not, easiest thing to do is get the clutch pedal assembly and a hydraulic set up. As far as the brakes, you will need the manual mastercylinder and rod. There should be enough line there to simply bolt it up.
     
  5. jpollard

    jpollard Member

    Joined:
    Aug 25, 2003
    Messages:
    717
    Likes Received:
    3
    Trophy Points:
    0
    Location:
    Montana
    Vehicle:
    1977 Factory 302 Mav. 1970 Cougar Eliminator, 1975 302 Grabber, 1976 4door 200...and still looking
    Thanks!! Any idea what hydraulic setup is the easiest to fabricate? ..and do you need to make any changes to the clutch pedal itself? Would it be any easier if I went to a non-powere system? Did they ever make a mav or comet these years that had a manual and power disc brakes?? Thanks again...You guys have been great. I forgot to get pictures of my car on here.

    JP
     
  6. Mavaholic

    Mavaholic Growing older but not up!

    Joined:
    Mar 9, 2002
    Messages:
    14,987
    Likes Received:
    196
    Trophy Points:
    258
    Location:
    Live Oak, FL
    Vehicle:
    Original 72 Sprint Owner, 71 Comet GT, 57 Ranchwagon, 57 4 dr Wagon
  7. jpollard

    jpollard Member

    Joined:
    Aug 25, 2003
    Messages:
    717
    Likes Received:
    3
    Trophy Points:
    0
    Location:
    Montana
    Vehicle:
    1977 Factory 302 Mav. 1970 Cougar Eliminator, 1975 302 Grabber, 1976 4door 200...and still looking
    brakes and tranny again...

    Mavaholic,

    I have to get this straight before I go out and buy any more parts.

    1. I have power brakes now.

    2. I have to get the clutch pedal assembly (any year 6 or 8 will do?).

    3. I am going to buy the hydraulic clutch setup. (any idea of cost?)

    4. What parts do I need for the tranny itself for the hydraulic system to connect to? Does it all come with a kit?

    5. I can keep my power brakes with the hydraulic set up. right?

    6. wont need to do any fabrication to the clutch or brake pedal with this setup.

    Sorry for all the questions........but i get tired of buying parts I dont need...

    Thanks,
    JP
     
  8. Mavaholic

    Mavaholic Growing older but not up!

    Joined:
    Mar 9, 2002
    Messages:
    14,987
    Likes Received:
    196
    Trophy Points:
    258
    Location:
    Live Oak, FL
    Vehicle:
    Original 72 Sprint Owner, 71 Comet GT, 57 Ranchwagon, 57 4 dr Wagon
    1. ok
    2. yes
    3. CJ pony Parts has the kit for a toploader for approx $600. You can probably find a better price. Just look thriugh the ads in the back of magazines.
    4. I have never bought the kit. Call CJ and I'm sure they can tell you.
    5. Nope, not the stock set up you cant.
    6. Dont know, again, Cj can probably help.

    Mustang & Fords installed this kit sometime back but I believe it was for the T5. I'll see if I can find the article.
     
  9. jpollard

    jpollard Member

    Joined:
    Aug 25, 2003
    Messages:
    717
    Likes Received:
    3
    Trophy Points:
    0
    Location:
    Montana
    Vehicle:
    1977 Factory 302 Mav. 1970 Cougar Eliminator, 1975 302 Grabber, 1976 4door 200...and still looking
    So even going with the hydraulic clutch system I cant keep the power brakes as they are now?

    Thanks Mavaholic.....You are more than patient...a saint perhaps?

    JP
     

Share This Page