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1st gen 4runner rear disc brake install

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Old Sep 13, 2009 | 05:35 PM
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From: San Jose ,Ca
1st gen 4runner rear disc brake install

So I ordered some brackets from 85excab for the rear disc brake conversion.
here is a link to his thread.
https://www.yotatech.com/forums/f11/...rakets-179881/

85excab brackets
1997 tacoma v6 4x4 rotors
1992 4runner 4x4 v6 calipers

Be sure your wheel bearings are in good condition before you do the rear disc brake conversion.
My where fine so I went ahead and did it.

ok I removed the tires ,drums and brake hardware then tried to fit the rotors.
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They would not fit so i started to grind down the hub a bit until they fit . I did have to stop every now and then to let it cool down a bit.
[YOUTUBE]http://www.youtube.com/watch?v=SOwjjxFyXjM[/YOUTUBE]



once the rotor fit I then pounded out 3 of the 4 bolts holding the axle to the housing.
then I removed the last bolt and took the axle out .
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I then cut the backing plate and removed that.
[IMG][/IMG]

I then put the axle back on with 1 of the original bolts and 3 longer bolts , and also put the disc caliper bracket on.
I then put the rotor on with all the lug nuts .
I then test fitted the caliper , it needed some grinding to the mounting tabs it has.Once I grinded enough , I installed it and now I have rear disc brakes.
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I put the caliper on the backside of the rotor so I could still use the original brake lines .


I still need to add a manual valve and test drive it , but I will do that after I install the 4:88's ,lockright ,and new bilsteins this week..

Last edited by RMA; Sep 13, 2009 at 05:38 PM.
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Old Sep 13, 2009 | 06:07 PM
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looks nice and easy
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Old Sep 13, 2009 | 06:13 PM
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ooh i want to do that!
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Old Sep 13, 2009 | 06:13 PM
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holy hell, 4 piston calipers for the rear??! Geeezus that thing is gonna lock up!!! LOL! Looks great man! Made it look nice and easy! It's nice that it's all Yota too!
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Old Sep 13, 2009 | 06:39 PM
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they turned out nice, good job
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Old Sep 13, 2009 | 06:57 PM
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You end up losing your parking brake right? Looks really good, BTW!! Never mind got my answer, no e-brake. Just had to click through a couple more links!
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Old Sep 13, 2009 | 07:02 PM
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Why is it nobody near me ever does cool stuff like this, so I can watch them do it up close?!

Great job man!
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Old Sep 13, 2009 | 07:08 PM
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Might want to rotate that last pic for clarity of install.

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Old Sep 13, 2009 | 07:25 PM
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what was your total cost?
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Old Sep 13, 2009 | 07:39 PM
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From: San Jose ,Ca
Originally Posted by Outsane
looks nice and easy
Lots of grinding man , grinding that hub took the most time.
Originally Posted by 99SR5
ooh i want to do that!
Do it to it Jack !!
Originally Posted by BigBluePile
holy hell, 4 piston calipers for the rear??! Geeezus that thing is gonna lock up!!! LOL! Looks great man! Made it look nice and easy! It's nice that it's all Yota too!
THanks ,Hey I wonder if I could bother and ask you to take a couple pics of your trans brake , I need to do that but am unsure if it will fit , My tranny is kind of high up .I will pm you ..

Originally Posted by 85excab
they turned out nice, good job
Thanks for the quick shipping man !!

Originally Posted by kiyobrown
You end up losing your parking brake right? Looks really good, BTW!! Never mind got my answer, no e-brake. Just had to click through a couple more links!
Yea no ebrake right now , Need to work on that one.
Originally Posted by Saiba Samurai
Why is it nobody near me ever does cool stuff like this, so I can watch them do it up close?!

Great job man!

THanks , Whats shown here is all there is , Do it man ..
Originally Posted by waskillywabbit
Might want to rotate that last pic for clarity of install.

Yea I will take care of that .

Originally Posted by AZkid
what was your total cost?

well
$50 brackets
$85 rotors there are cheaper ones
calipers free
bolts had them here dont remember what I paid for them .

I still need a manual valve but dont know what it costs because I havnet ordered it yet.

Remember you will not have an e brake and might want to do something about that.

Last edited by RMA; Sep 13, 2009 at 07:40 PM.
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Old Sep 13, 2009 | 07:50 PM
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Originally Posted by RMA
THanks ,Hey I wonder if I could bother and ask you to take a couple pics of your trans brake , I need to do that but am unsure if it will fit , My tranny is kind of high up .I will pm you ...
Sure thing, let me know. I think I already have some, but I'll snag some more tomorrow.
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Old Sep 21, 2009 | 06:34 PM
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So I thought i type a little update , im pretty much finished just need to bleed the brakes and fill the diff and put my drive shaft back on .

I did put the lockright in and some new bilsteins on in the rear.

maybe tomorrow i will do whats left ,depends what im in the mood for because i started my welding cart today also .

I think I can update my sig though.
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Old Sep 21, 2009 | 10:44 PM
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So its stops nicely i take it?
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Old Sep 23, 2009 | 06:32 AM
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I did mine using these brackets but I did the SFA rotors and calipers. Mine stops in a damn hurry but still got to dial the valve down a bit more, I'm still getting a bit of rear lockup right at the end. Nice thing is no more muddy drum brakes.
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Old Sep 23, 2009 | 07:58 AM
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this is a great write up and excellent pics. nice job man!

i have a question. could you have selected a caliper from a rear disc vehicle which already had a mechanical lever to attach an e-brake cable...if you weren't going to do the tranny brake?
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Old Sep 23, 2009 | 12:35 PM
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Originally Posted by 874runnersr5
So its stops nicely i take it?

Dude I dont know yet , I havnet driven her since then , need to fill the diff and bleed the brakes .

Originally Posted by Dipstik_90
I did mine using these brackets but I did the SFA rotors and calipers. Mine stops in a damn hurry but still got to dial the valve down a bit more, I'm still getting a bit of rear lockup right at the end. Nice thing is no more muddy drum brakes.
Do the sfa rotors fit over the hubs or do you have to grind then also to fit.

Originally Posted by tj884Rdlx
this is a great write up and excellent pics. nice job man!

i have a question. could you have selected a caliper from a rear disc vehicle which already had a mechanical lever to attach an e-brake cable...if you weren't going to do the tranny brake?

You cannot use the calipers from the eldorados or others with ebrake included , at least not with these brackets .
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Old Sep 23, 2009 | 01:21 PM
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The SFA rotors fit behind the caliper, a bit of a pita to install but it works. I like it because the caliper is smaller so less pedal travel.
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Old Sep 23, 2009 | 01:48 PM
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Looks good! I really want to do this but being in an apartment doesn't make it easy to work on my rig. I do have two questions though.

Does it matter where you mount the bracket and caliper? I've been told that it needs to be on top of the rotor for better braking but that didn't make sense to me. Thoughts?


Oh and have you though about using a line-lock as an parking brake instead of a t-case mounted one? I don't know if it will work for that purpose and just wanted to ask.
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Old Sep 23, 2009 | 01:59 PM
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Line-loc is not legal where I live has to be a mechanical brake.
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Old Sep 23, 2009 | 02:55 PM
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Originally Posted by Dipstik_90
The SFA rotors fit behind the caliper, a bit of a pita to install but it works. I like it because the caliper is smaller so less pedal travel.
Yea I know the rotor fits the caliper , But when installing the SFA Rotor over the wheel hub do you have to grind the hub down or does the rotor fit over the hub without grinding of the Hub?

Originally Posted by Junkers88
Looks good! I really want to do this but being in an apartment doesn't make it easy to work on my rig. I do have two questions though.

Does it matter where you mount the bracket and caliper? I've been told that it needs to be on top of the rotor for better braking but that didn't make sense to me. Thoughts?


Oh and have you though about using a line-lock as an parking brake instead of a t-case mounted one? I don't know if it will work for that purpose and just wanted to ask.

I really dont Know the best position for the bracket and caliper for braking purposes , I do know that the one impotant thing to know is that the bleeder screw has to be on top .

I put mine at the back of the hub just so I could use the existing brake lines and not have to buy longer ones .


I just recently found out about this Line lock thing , BigBluepile brought it to my attention , after a little searching I found that this can only be used temporary or you will burn the line lock out , or something along those lines.
So I will have to get the trans e -brake , and modifiy my crossmember again.
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