My 2006 Tacoma brake upgrade (EDITED!!)

Brake lines and adapter I got from a buddy's dad. I guess he use to make hydraulic lines back in his days. Pedal extension I got from my Uncle that owns a CNC shop. Don't know if he made it or found it laying around his shop though. I'll see if can get them to make some more if you guys are really interested. Not sure what the cost would be since they gave me the friends/family discount.

 

I’m definitely interested as those two parts are the biggest sticking points for me to complete this upgrade. I’d really like to install the larger MC to go with my 5th Gen T4R calipers but I’m not really in a position to fab up new hard lines or extend the pedal actuator myself.

 

I would expect there to be a cost for these parts and I'm sure anyone interested would be very willing to pay a respectable price to get these parts. Seems like we have a small market need for these and you have the means to access this.
Sounds like a very feasible idea. I too am interested in these parts.
And another big thank you for your legwork in tracking down what is needed.

 

Interested in hearing how much the peddle extension costs.

 

Seen these nut coupler on mcmasters .They got metric to metric ones too . Thinking with these and treaded rod can make rod extension . Might be doing this mod .Got rear disk kit with tundra master kit waiting for install .(Why ? Stimulating the economy )

https://www.mcmaster.com/hex-coupling-nuts/system-of-measurement~metric/

 

NICE!

 

They also sell these in all sorts of combos and sizes:


eliminating the need for a piece of all thread. Actually just ordered one for another project. Their shipping times are slow now though. 2-3weeks

 

No go on getting them to make more hardware. My buddy's dad did say any local hydraulic supply store should be able to make a set of lines. As for the pedal extension, I did find something that looks similar to the one I got on Ebay. It's a shift knob extension with the proper threads. Pretty reasonable price for someone to test out.
https://www.ebay.com/itm/282244618246

 

I gather the thread pitch on the tundra actuator rod is 10x1.25. Is the tacoma the same, or is it 8x1.25? Do you have to use the Tacoma clevis part or will the tundra one work if you simply extend the rod with an extension? According to the OP, the difference in length is 9.25 vs 7.625 inches, or 1.625. This part I found is 10x1.25, and 2" lift. Seems like it could be threaded down a bit further onto the existing tundra rod and make up the 1.625 very easily with no welding. But, would have to use the tundra clevis, unless the tacoma one is also 10x1.25. Little help Please!

https://ebay.us/BYOMRE

 

The Tacoma and Tundra brake booster actuating rods are both 10x1.25mm. Either clevis can be used but they're different lengths so as long as the end result is the correct overall length it will work. I never measured each clevis for their lengths. These shifter extension rods are looking like the easiest answer to solving the actuating rod length differences between the 2 boosters.

 

Thanks!

 

This exactly for me!

I just got my truck back yesterday. I collected the parts for the brake upgrade for a year. Didn't feel like doing the install myself so I took it to a mechanic my brother has trusted with his heavily modified Tundra for a few years now and was a Toyota mechanic for 25 years or so.

Anyway, even though my brakes are not bedded in yet, I have the same exact take: pedal travel is too long and they dont feel rock solid like I was hoping with the addition of SS braided soft lines.

I REALLY don't want to put in a new master cylinder. In fact when I was initially researching this upgrade the initial thread I got the info from and then a few people who also completed the install said a new MC was not necessary. Damn it all. I'll keep my eyes on this thread, and in the meantime get my brakes bedded in so they at least have the bite they should...... :-(

 

The SOS Performance kit that is links above somewhere, even when you option to get a master cylinder, doe not include the Tundra / Sequoia booster. Is the booster not necessary? Would just the MC change achieve the same goal here?

 

Having completed the T4R front brake upgrade about six months ago now, I can safely say that my biggest issue with the pedal feel was properly bleeding the brakes.

Once all the air was finally out of the lines (thanks to the speed bleeders) the pedal firmed up quite nice. I also ended up ditching the TRD Performance brake pads as they were super dusty and had a really bad habit of leaving deposits on the rotors causing unwanted steering wheel vibrations. After switching to OEM pads and bleeding the brakes, my pedal feels as good, if not better, than it did before my passenger side caliper started failing.

However, with that said, I’m still not completely satisfied with the amount of pedal travel. To really make this upgrade feel perfect, I think swapping the MC is necessary. If I can get the truck to where I can feel the brakes engage with the slightest touch of the pedal and then feel the upgraded bite from the T4R calipers, I’d be incredibly happy. So this mod is still very much on my “to do list” I just need to source the parts and take care of some other things first.

 

Hmmm.

I started with OEM pads, but also, like I noted, my brakes arent even bedded in yet. Also, since a shop did my install, I'd like to think my bleed is complete. He said that when he first finished and bled it didnt feel quite right so he lit it sit overnight, then bled again next day and got more air out and it felt like it should.

So it looks like I am going to come to the same conclusion as you. Looking at the SOS kit, that looks like the ticket for me. It's more money but it eliminates have to search for parts, and the adapter plate means you only need to swap the MC, not the whole booster, which should greatly simplify install. I might go that route.

 

It took three, maybe even four attempts at bleeding my brakes... the first one was done using Techstream to bleed the ABS and the lines, per instructions. The truck felt terrible after that bleed. The second time was done about a half hour later, all manual. It felt better but not quite right. The third time was done the next day, again using Techstream to bleed the whole system. It was better, but still didn’t feel like it should. So I ordered speed bleeders for all four corners and waited. Once they showed up we installed them, bled the system manually until we saw no more bubbles from each corner and that did it.

Somehow, air was seeping back into the lines when we attempted to close each valve. We were using a vacuum bleeder but it must not have had a good seal. Either way, I’m a huge fan of the speed bleeders and the check valve. It will make bleeding the system easy whenever I finally get around to installing my rear stainless lines (tried to do it during the install but my factory hardlines are seized to the soft lines and we couldn’t break them free). I have new hardlines and mounting hardware ready to go in the truck but I’m going to wait until I have a reason to crack the system open again before I mess with it.

I’ll look into the SOS kit. I don’t care how I get the MC upgraded, I just want to “complete” this brake upgrade and see how it feels. Then I’ll be able to give it an honest assessment and either recommend, or not recommend, it as a budget BBK.

 

It appears you guys are completely missing some of the points that make this mod great.

The Tacoma MC doesn't bolt up to the Tundra booster and vice versa. It could probably be done with a custom adaptor plate but why? Rhetorical.

The huge improvement in braking isn't because of the slightly larger MC bore of the Tundra MC, it's because of the change from a single diaphragm ~8" booster (Tacoma) to a dual diaphragm ~8" booster (Tundra). There is a ton of information on dual diaphragm boosters online and I suggest researching more before you cut your mod short of what it could be.

 

I think your truck has A TRAC with means you can't change your MC or your booster, please correct me if I'm wrong...

 

Ah, ok. This is what I was wondering.

 

No, only the OR model. I don’t have the fancy booster.

And to your point, I definitely want to change the booster and MC. I’m not going to go through all of this and keep the stock Tacoma booster. I’ve read plenty of threads about how that did not change the pedal feel, and if anything, made it worse.