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Geo Tracker/Suzuki Sidekick Disc Brake Solution For Early CJ5's

Discussion in 'Early CJ-5 and CJ-6 Tech' started by tarry99, Mar 23, 2018.

  1. Mar 15, 2019
    Focker

    Focker I Hate Being Bi-Polar, It's Awesome. Staff Member Sponsor 2019 Sponsor

    Tri-Cities WA
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    What size brakes are on there now?
     
  2. Mar 15, 2019
    jeepstar

    jeepstar Sponsor Sponsor

    Sheboygan
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    11x2.

    my main concern is they would get hot or fade. the Geo rotors aren't slotted.

    a CJ5 had 9" brakes, but i have the 10" brakes, so 10" drum brakes on the back and the Geo rotors on the front. CJ curb weight is about 2665 lbs, per the internet, so +/-. that's right between the Geo and the FC.
    so...logically, one could assume that 4 wheel disks would be appropriately up to task.

    however, as forest gump would say, "i'm not a smart man Jennay". i don't want to trust my assumptions when it comes to stopping.
     
    Last edited: Mar 15, 2019
    Focker likes this.
  3. Mar 15, 2019
    mickeykelley

    mickeykelley Active Member

    Republic of Texas
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    I put the Geo on my front and 11" self adjusting Bendix on the rear on the CJ. Yes it is much better than the factory but not anywhere close to what we all expect now with power brakes. I considered doing the Geo disc on the front of my wagon, same conversion, but with a wagon coming in around 32-3300 lbs and my experience on the CJ Geo, I have opted to go with the 11" Bendix on all 4 corners of the wagon. Then I will add a vacuum power booster from Herm if I need better feel (less leg) for the wife. I'm certainly no expert, but maybe thoughts are at some point it crosses the thresh hold on the smaller Geo stuff. For me, the wagon weight crossed.
     
  4. Mar 15, 2019
    jeepstar

    jeepstar Sponsor Sponsor

    Sheboygan
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    also,
    if the geo tracker weighs 2300 lbs, add 4 adult occupants, +gear, im already past the curb weight of the FC, which only sits 2, and i wont be hauling anything in it ever....so....i dont know. seems legit. any brake estimate websites out there?
     
  5. Mar 15, 2019
    jeepstar

    jeepstar Sponsor Sponsor

    Sheboygan
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    i posed this question to brennan, the dude that makes the brackets, and his response:

    "My flat fender is 3700lbs loaded for a big trip with two people and gear. The tires are very heavy and wide 35 inch Krawlers and steel beadlock wheels. I've never had any want for more brakes with my conversion on all 4 corners. I've done tens of thousands of highway miles including cross country trips over stuff like wolf creek pass.
    The late model 4 door Tracker/Sidekick has an option for vented rotors. You can use those with my conversion BUT you have to make sure to get the matching caliper. Those parts are a little more expensive, but could provide more resistance against fade."
     
  6. Mar 15, 2019
    Keys5a

    Keys5a Sponsor Sponsor

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    My FC has 11"x 2" brakes all the way around, same as Willys Wagons. As long as they aren't coated with oil, they stop quite well in stock form. The FCs used to have an optional heavy rear weight to keep the rear end down.
    If your stock FC brakes are in good working order, there is no real need to "upgrade" to discs.
    I would keep the stock brakes.
    -Donny
     
  7. Mar 15, 2019
    45es

    45es Sponsor Sponsor

    Naches, WA
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    If you want disc brakes and are concerned with the size and/or capacity of the Suzuki conversion, you might consider Focker's write up for the GM conversion.

    Front Disc Brake Tutorial
     
  8. Mar 15, 2019
    jzeber

    jzeber Well-Known Member Sponsor 2019 Sponsor

    Morgan Hill, Ca
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    I did a similar conversion on my D27, should be a thread around here somewhere. Fairly reasonable with junkyard stuff and not super hard to do. My biggest problem was the brake line routing. Make sure you get them right, makes a huge difference.
     
  9. Mar 15, 2019
    tarry99

    tarry99 Member Sponsor

    Northern California
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    Plenty of brake torque calculators on the net..........as long as you can enter all the correct parameters , like friction area , master cylinder , caliper or wheel cylinder bore size , pedal ratio and correct weights.......it will tell you all you need to know......auto transmissions also need additional braking torque.
     
    GTS Dean likes this.
  10. Mar 18, 2019
    Don X

    Don X President for Life Staff Member Sponsor

    San Diego,...
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    Has anyone had trouble with the wheels clearing the calipers? Looks like I need 1" spacers.
     
  11. Mar 18, 2019
    1967 CJ5A

    1967 CJ5A Mike

    Southern Indiana
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    Yes, I bought all the parts and it looks like it will need at least a 3/4" spacer for both my 15"x5.5" CJ wheels and my 16"x6" Gladiator wheels. I was really hoping to avoid spacers. Bummer.
     
  12. Mar 18, 2019
    mickeykelley

    mickeykelley Active Member

    Republic of Texas
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  13. Mar 19, 2019
    justin_bongo

    justin_bongo Member

    Pampa, TX
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    I had to grind a small bit from the calibers to clear my 15" factory wheels.
     
  14. Mar 20, 2019
    jeepstar

    jeepstar Sponsor Sponsor

    Sheboygan
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    to the folks who did this, did you just use the front geo calipers on the back if you go 4 wheel disk? i am sure thats the way you would go, but i want to double check.
     
  15. Mar 31, 2019
    william_cj3b

    william_cj3b 3BOB driver Sponsor 2019 Sponsor

    Milton, FL
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    Received goodies from Brennan's yesterday...

    [​IMG]
     
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  16. Apr 1, 2019
    tripilio

    tripilio Proud American!

    Miami
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    William, how much did they cost you?
     
  17. Apr 1, 2019
    jeepstar

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    Sheboygan
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    they cost me 65 bucks a set, and included the mounting hardware for the brake calipers. i bought 2 sets about 3 weeks ago.
     
  18. Apr 1, 2019
    william_cj3b

    william_cj3b 3BOB driver Sponsor 2019 Sponsor

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    $110 shipped for a set of 4.
     
  19. Apr 1, 2019
    tripilio

    tripilio Proud American!

    Miami
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    I have a question regarding the brackets installation: I changed (upgraded?) the knuckles bolts to the ones you install from inside as per a recommendation in one thread here. Now it seems they are a tad short. If I put a lock washer there is not enough screw left. Have you encountered anything like that or you still have the regular bolting method into the knuckle? Most likely I will have to remove the spindle and install longer screws. :cry:
    One step forward and two back!
     
  20. Apr 1, 2019
    Jrobz23

    Jrobz23 Member

    Northern, WI
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    This sums up my life lol
     
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