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tundra brake upgrade on a 94 4runner

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Old 07-13-2016, 02:15 PM
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tundra brake upgrade on a 94 4runner

i always wanted to upgrade the brakes on it, the opportunity came to get a set of disc of a tundra and calipers, never seen it done on a 1994 4runner, so,
well, this is what i did,
first removed the whole assembly out to start checking how to fit it, and see what the differences in sizes
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few pics for comparing (ish) the size of calipers, and disc.
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calipers bolt pattern dont match

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the disc its touching too much the dust shield,so need to trim it (about 10mm around) and i will shave behind the hub, to leave it level to the back of the wheel studs
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Last edited by BUDD; 07-13-2016 at 02:22 PM.
Old 07-13-2016, 02:16 PM
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drilled holes to fit it like the factory discs

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brackets made

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and fitted

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sorry, not the best pic
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Old 07-13-2016, 02:19 PM
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then, the end, on 16s, nissan patrol wheels, not sure if 15s will fit, still some space around the caliper and wheel
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now, wait till i got the paint job finish to fit it all with some 305/70r16 tyres
Old 07-13-2016, 02:20 PM
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i will fit 30mm spacers, to avoid the tyres rub
Old 07-13-2016, 10:43 PM
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Just what difference in pounds per square inch with the brake upgrade compared to stock ??

In the applied braking pressure ??

overall increase is pad area ??
Old 07-13-2016, 11:07 PM
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im sorry about my ignorance, but i dont know how many pounds difference,
all i know its by being bigger disc/calipers= bigger pad area,
im lucky that someone put already 1inch bore master cylinder,
so definitely it will be an improvement on my old rubbish braking power.
Old 07-13-2016, 11:29 PM
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Interesting how new brake parts work better then old worn out brake parts!!

I got the same improvement just by putting all new stock parts on funny how that works.
Old 07-13-2016, 11:54 PM
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Originally Posted by wyoming9
Interesting how new brake parts work better then old worn out brake parts!!
very funny, of course i tried first putting new disc,pads,refurbished calipers flushed system with new fluid, and still not happy with it
I got the same improvement just by putting all new stock parts on funny how that works.
if you say that because you think its for the one in the pic,you wrong, that's the one im using to check if all fits,
the one its going for, cant be stopped for too long due it still on service

Last edited by BUDD; 07-14-2016 at 04:30 AM.
Old 07-14-2016, 11:12 AM
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Do you have a better picture of the bracket mounted, with and without the caliper?

While looking at various other brake upgrade threads (or maybe it was the widening a SFA with IFS parts thread) there was some discussion of people not trusting an add-on bracket for the caliper mounts (I'm not sure that I completely understand their concern) but are you worried about that bracket failing?

I like the idea though.
Old 07-14-2016, 12:08 PM
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I was not going from your project at all .

The bottom line as long as your happy that is all that matters

Besides if I wanted to make fun of you I could do much better with my 5th grade education !!
Old 07-14-2016, 10:37 PM
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Originally Posted by wyoming9
I was not going from your project at all .

The bottom line as long as your happy that is all that matters

Besides if I wanted to make fun of you I could do much better with my 5th grade education !!
all good,
Old 07-14-2016, 10:42 PM
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Originally Posted by SacRunner
Do you have a better picture of the bracket mounted, with and without the caliper?

While looking at various other brake upgrade threads (or maybe it was the widening a SFA with IFS parts thread) there was some discussion of people not trusting an add-on bracket for the caliper mounts (I'm not sure that I completely understand their concern) but are you worried about that bracket failing?

I like the idea though.
im open to new/better ideas,

i asked several engineers, some said to weld it in position, some told me to leave it like this, yes, i will take some more pics, thanks.

Last edited by BUDD; 07-14-2016 at 10:51 PM.
Old 07-15-2016, 11:40 AM
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here they are, more pics.






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