2nd Gen DIY Big Brake KIt -OEM parts- Part #'s provided (INSTALLED)

running a 17in kmc wheel, wonder if i should get it set up for a 16in wheel think my spare is a 16

 

False. If you read the very first post it says this:

13WH calipers match 338mm OD (13.30 inch dia) and 28mm thick rotors and accept the 231mm pads (this is from 2003-2009 Lexus GX470 and select 2003-2009 4runner)

338mm rotors need a 17" wheel. I can confirm this because I originally had 16's and it definitely needs 17's to clear.

Just get a 17" for your spare and you're good to go.

 

also, what i was thinking, need to find a set of used FJ steels or something

 

2010 to 14 4Runner

 

Yes, but also no. This particular BBK thread is about using the 13WH calipers. Punching in for a 2010-2014 4Runner you will get a 14WA caliper that is slightly different (+3mm larger piston, overall larger caliper). Using those newer 14WA calipers you should also use the matching rotor because they are thicker. Different backing plates too. Lots of small but important differences. But that's in a different thread, not this one.

So yes they will work but this is a different thread about the 13WH setup. Anyone wanting the 13WH setup should go back to post #1 in this thread and match years 2003-2009 Lexus GX470 and select 2003-2009 4runner

 

What would be the better brake kit? The 13WH or the 14WA? Seems like the 14WA is the better one.

 

I’m debating go this or just saving up my pennies for a BBK kit.

 

The larger piston uses more fluid. If you have a vacuum break booster you will notice you have to push the peddle farther.
Then you can upgrade to a tundra master for more fluid and pressure. While doing that increase the rear wheel cylinders to take more fluid and slows them to take more of the breaking load.

the 13wh calipers being the same amount of piston all your getting is a larger rotor that can take more heat before it warps

 

Bingo. And if you have an OffRoad with the electronic assisted booster, the 13WH setup is maybe the safer option because we can’t upgrade boosters.

 

https://www.ebay.com/itm/1642826754...CC+285Cu.+In.+V8+GAS+DOHC+Naturally+Aspirated

Would you all trust this pair of 13 WH calipers? 108 bucks for two on eBay. They are obviously not OEM.
I am thinking of getting DBA 4000 slotted rotors, stop tech performance pads, and these calipers would make my total price about $550. Not bad bang for buck.

 

@crashnburn80 's post is using the OE size calipers and rotors... it works well in my opinion as I've been using the same combo sine I found that post some 5 or 6 years ago, but this thread is basically a mid brake kit( vs big brake kit) as you're using larger size calipers capable of more clamping force and larger/thicker rotors capable of withstanding higher temps( more spirited braking) all while using factory parts, sensors and backing/dust shields to keep brake disks cool. So after having read this I'm for sure ready to toss my cryo centric slotted Rotors and trd pads for 14 t4r brake components to and perhaps some upgraded Rotors and pads.

 

I know this is from a while back, but do you still have this truck? Or did you have any issues with this set up? I've got an '09 trdor with the electronic brake master like yours vs the vacuum booster type and I was wondering if you had any issues with that system and having larger pistons in the calipers requiring more fluid. Wish there were a way to make this work with the 4 runner rear disc conversion vs needing the sequoia booster.

 

Yes, I still have the truck. Works fine with the rear 4runner setup. I can't confirm, but I recall the 4runner and Tacoma use similar masters. With the 4runner fronts, there was some softness, but not too bad. The heavier the truck got it did, the less effective it naturally would be. Just make sure you bleed them well and use good pads.

My brake path has been:

• Stock Tacoma Setup
• 5th Gen T4R Calipers w/ Slotted Stoptech, stock rear drums (I was going to put in TRD pads and DBA 4000 T3 rotors but swapped them before doing so) I ran this with stock pads (Tacoma and T4R use the same pads)
• Willwood Aero-6 T4R caliper w/ slotted stoptech
• Willwood Aero-6 T4R calipers w/ Stoptech ST40 rear and slotted rotors (Rear Disc Conversion with BBK)
• [current setup] Stoptech ST60 - (Tacoma piston size) w/ 2 piece Stoptech Slotted rotors and Stoptech ST40 rear and slotted rotors (Rear Disc Conversion with BBK)

Overall T4R was a great truck that got heavier. RR Racing has calipers that work with the T4R stock setup. Since it's not easy to upgrade the master, I decided to try Tacoma spec—no issues with Willwood. The mixed Willwood/stoptech was nice, but I got some nice deals, 15-20% off the Stoptech setups, and had picked up the rear conversion off a member a while back. More info is in the other thread on the 5th gen setup in 1st post or my signature.

 

Ive got the front ST60 kit on my FJC now (electric assist) and I noticed no difference in braking vs OEM calipers in respect to the master.

I just got sick and tired of replacing seized OEM-style calipers every so often.

 

I switched out from OEM > T4R > Wilwood Aero6 and now have Stoptech ST60 kit as well and agree I do not notice any difference in terms of feel to the Master. Did you go with the SOS kit?

 

Yeah...the smaller 323mm one to fit my 16s



I do wish I had "bitier" pads (but not race pads of course)...these Stoptech street pads, while better than the Powerstops I had in OEM form, just seem like they are leaving some of these calipers abilities on the table.

May be my 255 mud tires too...not a lot of rubber on the road. I should be putting on some 285 winters this week or next and can finally test that theory.

 

I would agree. I had the willwood aero-6 with the BP-20 and swapped to the BP-10 pads. These were more aggressive and had a great bite. I have Hawk Street pads on the front but looking at another pad with more bite. The Hawk are similar to the stoptech sport but supposed to have more bite.

 

I've got some pads you should try...way more bite than the StopTech street pads. I sent you a PM.

 

Why not share with the group @lbhsbz?

 

Because a TRD BBK and a StopTech kit sourced through SOS Performance may use different pads. I'd rather communicate before purchase because I try to avoid dealing with returns. The SOS kits are not Stoptech kits....they sourced some component from Stoptech but assembled the kit as their own....we could not sell a kit for the applications that we made TRD kits for due to a non-compete, and I'm not sure how they've configured the calipers. The standard ST-60 uses a D1247 pad, which is a shape used only in aftermarket/race calipers (AP, Alcon also use this shape). When we make ST-60 kits for OE contracts (Salleen, maybe Roush, TRD)..we used different abutment clips such that they would accept an D756 pad shape, which is an off the shelf pad for a Ford Truck. It should be noted that the ford pad requires a minor modification in most cases for use in an ST-60 caliper...there are 2 lugs on the back of the back that retain/locate the shim. These need to be removed with a grinder/cold chisel so that the backing plate is flat, otherwise the lugs will land right smack on top of the 2 pistons as the only area of contact between the pad and those 2 pistons, which can cause some sideloading of those pistons and accelerated wear of the pistons/bores as well as noise issues.

We also offer these pads for the OEM calipers.