Upgrade your early Tundra Brakes In 1 hour

[bman-tx]

Thanks for the Info! I was looking for the torque numbers for my break job!

Bman-tx

[MEvang]

Caliper Bolts 90 lbft
Brake lines 11 lbft
Lug nuts 83 lbft
Mike

[t1704]

First, Thank you all for the valuable information in this post. Secondly, I'm a bit confused. I was led to believe that the root cause of this braking problem is due to insufficient rear braking, overpowering the front brakes causing the rotors to overheat and warp? It doesn't seem from this post that the rotors are in question and the new calipers don't seem much larger, so how does this fix the root of the problem? Prior to reading the "full" post, I was just going to add Brembo rotors and some ceramic pads, but now I'm not so sure. Thank you for any clarification.

Travis

[BlackLTD]

Originally Posted by t1704

Prior to reading the "full" post, I was just going to add Brembo rotors and some ceramic pads, but now I'm not so sure.
Travis

I bought my Sequoia used a few years ago and the first thing I did was upgrade to PowerSlot rotors and Hawk ceramic pads because of the brake vibration. I did not know about the TSB and it was already out of warranty. I thought it fixed the problem until about 4 months later and the vibration came back for whatever reason.
All I know is that the upgraded calipers work and my front brakes don't vibrate anymore. They pay those engineers at Toyota the big bucks, so I figured it must be right. I don't think there is an improvement in braking performance compared to old ones. They just feel smoother and don't vibrate like the front end is about to come apart. If it's time to change the pads, might as well do it right.

[Tundrav8yamaha]

Originally Posted by t1704

First, Thank you all for the valuable information in this post. Secondly, I'm a bit confused. I was led to believe that the root cause of this braking problem is due to insufficient rear braking, overpowering the front brakes causing the rotors to overheat and warp? It doesn't seem from this post that the rotors are in question and the new calipers don't seem much larger, so how does this fix the root of the problem? Prior to reading the "full" post, I was just going to add Brembo rotors and some ceramic pads, but now I'm not so sure. Thank you for any clarification.

Travis

The problems lies within a Poor Caliper design and Toyota knows very well about this issue because it affected the Tundra and the Sequoia for the first model year'. It Took Toyota till Sept 2003 to finally get it right.

Erik

[MEvang]

First off consider that an unloaded pickup does 80% of it stopping with the front brakes. Any more rear brake pressure can be dangerous causing rear brake lock up.
Then consider that braking is all about turning the kinetic energy of a moving vehicle into heat. This heat then has to be dispensed quickly.
The root problem in the Tundra brake design is likely the size of the rotors. Mainly the thickness and the amount of mass available to dispense heat.
My guess is the engineers where stuck with the rotor at this size and instead went the route of adding more mass to the calipers which also plays a large part in dispensing pad heat. It turn this allowed them to reengineer the pads also.
But not all of the pulsation issue have come from the front. Much has to do with the rear drum which are also low on mass and were not heavy enough. Over adjusting the rear brake or installing them cocked on the axle hub will cause them to warp and transfer a pulsation to the driver.
Toyota also made available a heaver drum which also went into production when the larger caliper did in 03.
Lastly consider that poor repairs habits of technician may cause a lot of problem if the brake design is border line. Poor rotor, drum machining techniques cause more pulsation problems. The problem with the rear drum that I mentioned which can turn up after a rear brake clean and adjust service. Then the fact that many do not torque the wheels properly.
Everything in a brake system needs to be considered as the system work as a hole. Toyota obviously considered the issues with the early Tundra brake when the redesign the new truck. Everything is bigger rotors and calipers and they added rear disc for more loaded stopping power.
Mike

[t1704]

Thanks guys.

[Cyberbilly]

Originally Posted by MEvang

First off consider that an unloaded pickup does 80% of it stopping with the front brakes. Any more rear brake pressure can be dangerous causing rear brake lock up.
Then consider that braking is all about turning the kinetic energy of a moving vehicle into heat. This heat then has to be dispensed quickly.
The root problem in the Tundra brake design is likely the size of the rotors. Mainly the thickness and the amount of mass available to dispense heat.
My guess is the engineers where stuck with the rotor at this size and instead went the route of adding more mass to the calipers which also plays a large part in dispensing pad heat. It turn this allowed them to reengineer the pads also.
But not all of the pulsation issue have come from the front. Much has to do with the rear drum which are also low on mass and were not heavy enough. Over adjusting the rear brake or installing them cocked on the axle hub will cause them to warp and transfer a pulsation to the driver.
Toyota also made available a heaver drum which also went into production when the larger caliper did in 03.
Lastly consider that poor repairs habits of technician may cause a lot of problem if the brake design is border line. Poor rotor, drum machining techniques cause more pulsation problems. The problem with the rear drum that I mentioned which can turn up after a rear brake clean and adjust service. Then the fact that many do not torque the wheels properly.
Everything in a brake system needs to be considered as the system work as a hole. Toyota obviously considered the issues with the early Tundra brake when the redesign the new truck. Everything is bigger rotors and calipers and they added rear disc for more loaded stopping power.
Mike

So are you saying that converting rear disk brakes on a Tundra is a bad idea?

[Tundrav8yamaha]

Originally Posted by Cyberbilly

So are you saying that converting rear disk brakes on a Tundra is a bad idea?

for $1,800 I think i can spend my money on something worth having Not only is this pricey but in my opinion it's not worth the hassle. Tundra Caliper flaw is the main cause of the braking issues Yet Toyota did have the 4 runner teeth update done to the rear's which in my opinion really didn't solve the problem's since the rear braking is fine in my opinion.

[MEvang]

Toyota uses a pretty large drum brake in the rear which is more then enough for most driving situations. Of course if you are in the habit of overloading the truck with cargo or a trailer then it may make sense.
But under most driving conditions the rear brake barley do any thing.
This is why the shoe tend to last over 1000k
Mike

[shaolin]

This upgrade still requires a 17 inch rim correct?

[Tundrav8yamaha]

Originally Posted by shaolin

This upgrade still requires a 17 inch rim correct?

wrong 16''

[MEvang]

If you feel you need rear disc I suggest converting the Sequoia rear disc to the Tundra. This is a system closely engineered for this size vehicle and can use all factory service parts. Other then this your own engineer.
Mike

[fuzion]

Quick question:
I purchased new crossed drilled brembo rotors for an 01 sequoia and installed them about a month ago. But now I came upon this thread. Can I use the same rotors for the new larger calipers or does it require BOTH larger calipers and larger rotors.

thanks

[fastman9]

My understanding is that you will be fine, can I get a second?