Big Tundra brakes on 3rd Gen 4runner
#143
#144
I dont know if it was mentioned, i just skimmed the 2nd half of the thread, but I noticed all the pics of the wheels which had to be ground were the double 3 spoke 16in. What about the 5 spoke 16in wheel? does that need to be ground too? And if it does i was thinking ill just make a little solidworks file and take it to my school machine shop have the cnc cut out a 5-10mm wheel spacer for me out of some Al.
#145
Well I just ordered my 231mm calipers today they are telling me i might have them in a few days I hope i dont have to grind anything part of the cal's or wheels does anyknow if they fit on the factory 16in 5 spoke wheel?
Can't wait to do the install and ill try to get a few pics of it.
Can't wait to do the install and ill try to get a few pics of it.
#147
Dead wrong. They fit just fine under these wheels without any interference whatsoever.
These brakes do not stop my truck any faster than the stock setup, which was in perfect working order. And they will not do anything to increase brake pressure or decrease stopping distance on any vehicle. But now that I tow and live in the Rockies, they have proven far more fade resistant. These are tow package brakes, nothing more.
These brakes do not stop my truck any faster than the stock setup, which was in perfect working order. And they will not do anything to increase brake pressure or decrease stopping distance on any vehicle. But now that I tow and live in the Rockies, they have proven far more fade resistant. These are tow package brakes, nothing more.
#148
Dead wrong. They fit just fine under these wheels without any interference whatsoever.
These brakes do not stop my truck any faster than the stock setup, which was in perfect working order. And they will not do anything to increase brake pressure or decrease stopping distance on any vehicle. But now that I tow and live in the Rockies, they have proven far more fade resistant. These are tow package brakes, nothing more.
These brakes do not stop my truck any faster than the stock setup, which was in perfect working order. And they will not do anything to increase brake pressure or decrease stopping distance on any vehicle. But now that I tow and live in the Rockies, they have proven far more fade resistant. These are tow package brakes, nothing more.
I just have warping no matter what plus i plan to go to bigger tires soon
#149
Dead wrong. They fit just fine under these wheels without any interference whatsoever.
These brakes do not stop my truck any faster than the stock setup, which was in perfect working order. And they will not do anything to increase brake pressure or decrease stopping distance on any vehicle. But now that I tow and live in the Rockies, they have proven far more fade resistant. These are tow package brakes, nothing more.
These brakes do not stop my truck any faster than the stock setup, which was in perfect working order. And they will not do anything to increase brake pressure or decrease stopping distance on any vehicle. But now that I tow and live in the Rockies, they have proven far more fade resistant. These are tow package brakes, nothing more.
I suspect cutting the shields will be necessary regardless of the wheels.
#150
Part of the issue here is that the Tundra brakes are different. First the calipers, the 199mm are wider and longer then the 4runner stock calipers and the 231mm calipers are 32mm wider then the 199's. Most 3rd gens that have 16" OEM alloy wheels will not have any issues clearing the 199mm calipers, but will have clearance problems with the 231's, because they are wider! The extra width also comes from the enlarged cross ports for the pistons.
The Thundra rotors are thicker then the 4runner rotors but are the same diameter. Thicker rotors provide for more heat dissipation resulting in less over heating in sever braking situtations which in turn result in cooler rotor temperatures. This will in turn results in less warpage issues.
So going with the Thundra brake setup should eliminate issues with rotor warpage. Thicker rotors result in thicker calipers. this is the major issue with the upgrade to these brakes in the front of our 3rd gens. This can be offset with the newer style OEM wheels. They can make it easier to fit the larger 231, especially if you go with 17" wheels thus eliminating having to grind on the calipers or the wheels themselves, but using the 199mm calipers you should not have any issues with most OEM alloys from any year as long as they are 16" or larger.
Grinding on the calipers may be a solution to clearance issues with some wheels but you run the risk of damaging the calipers as the extra width is where the cross ports are located. Remove too much metal and you can destroy the calipers. If you get the larger 231's I would look at replacing the wheels with newer style OEM alloys. Bigger wheels (17-18") would most likely eliminate any clearance issues
Another concern is the issue of the spare tire. I also eliminated that issue as I located and installed another OEM alloy of the same style as was originally installed on my truck. You can find pretty much all the styles in most wrecking yards. I got mine with a practically brand new all terrain tire for less then $85. It will look the same if I need to swap out a flat and its only temp anyway. Eliminates having to swap tires from front to rear.
No matter which size calipers you chose, you will have to trim the dust shields as the rotors are the reason you need to trim the shields. The rotors rub and this is what requires the metal removal on the dust shields. Some require more rework then others so just take your time and you should not have any other issues. Besure to also center and seat the rotors before you install the wheels. A Toyota technician told me this, and you may need to rotate the location of the rotor on the hub to get it matched to the hub so it turns true and will be centered in the caliper. Ideally, if you need to have the rotors turned you would do it on the vehicle. You can do the same thing with rotating the rotor on the hub and using the lug nuts to center and tighten the rotors to the hub before you put the wheel back on. After you do install the wheel besure to torque the lug nuts to 80 ft lbs.
Remember, the combination of various components from different years will yield different results. All in all it is a pretty easy and worthwhile upgrade. Whether you opt for remanufactured, new OEM Toyota, aftermarket or wrecking yard used, you will notice better overall braking performance. Even if you don't notice any real change in your brakes, for most, it will eliminate the warpage issue and you will be very happy with the overall stopping power of your truck, after all the goal is to keep from bending our sheetmetal!
Hope this helps anyone still thinking about the upgrade
The Thundra rotors are thicker then the 4runner rotors but are the same diameter. Thicker rotors provide for more heat dissipation resulting in less over heating in sever braking situtations which in turn result in cooler rotor temperatures. This will in turn results in less warpage issues.
So going with the Thundra brake setup should eliminate issues with rotor warpage. Thicker rotors result in thicker calipers. this is the major issue with the upgrade to these brakes in the front of our 3rd gens. This can be offset with the newer style OEM wheels. They can make it easier to fit the larger 231, especially if you go with 17" wheels thus eliminating having to grind on the calipers or the wheels themselves, but using the 199mm calipers you should not have any issues with most OEM alloys from any year as long as they are 16" or larger.
Grinding on the calipers may be a solution to clearance issues with some wheels but you run the risk of damaging the calipers as the extra width is where the cross ports are located. Remove too much metal and you can destroy the calipers. If you get the larger 231's I would look at replacing the wheels with newer style OEM alloys. Bigger wheels (17-18") would most likely eliminate any clearance issues
Another concern is the issue of the spare tire. I also eliminated that issue as I located and installed another OEM alloy of the same style as was originally installed on my truck. You can find pretty much all the styles in most wrecking yards. I got mine with a practically brand new all terrain tire for less then $85. It will look the same if I need to swap out a flat and its only temp anyway. Eliminates having to swap tires from front to rear.
No matter which size calipers you chose, you will have to trim the dust shields as the rotors are the reason you need to trim the shields. The rotors rub and this is what requires the metal removal on the dust shields. Some require more rework then others so just take your time and you should not have any other issues. Besure to also center and seat the rotors before you install the wheels. A Toyota technician told me this, and you may need to rotate the location of the rotor on the hub to get it matched to the hub so it turns true and will be centered in the caliper. Ideally, if you need to have the rotors turned you would do it on the vehicle. You can do the same thing with rotating the rotor on the hub and using the lug nuts to center and tighten the rotors to the hub before you put the wheel back on. After you do install the wheel besure to torque the lug nuts to 80 ft lbs.
Remember, the combination of various components from different years will yield different results. All in all it is a pretty easy and worthwhile upgrade. Whether you opt for remanufactured, new OEM Toyota, aftermarket or wrecking yard used, you will notice better overall braking performance. Even if you don't notice any real change in your brakes, for most, it will eliminate the warpage issue and you will be very happy with the overall stopping power of your truck, after all the goal is to keep from bending our sheetmetal!
Hope this helps anyone still thinking about the upgrade
Last edited by Ritzy4Runner; 06-03-2009 at 06:55 AM.
#151
Im not sure if this would be possible, But i just did the brakes on my moms 03 4runner limited (bigger brakes) and i will be doing my tundra swap tomorrow, but the part numbers for the 4runner pads and tundra pads are the SAME. So i checked it out and the casting on the 4runner calipers are 13WG where as the tundra calipers are 13WL. I didnt measure anything but does anyone know what the L and G stands for? Maybe we could use the 4runner calipers as a option to. The rotors looked similar/maybe the same. Maybe there is some more input on this?
#153
Dude, word of advice, don't ditch her, get her involved! She might be the greatest accessory you have ever had! If she isn't mechanically inclined this is a gr8 opportunity to dazzle her with yours and TEACH her some stuff about your truck! She could at least hand you the tools! Who knows, she might surprize you!
#155
Another question on this.. My stock brakes are completely shot... warped rotors and end of life on the pads.
Does anybody know if 231 mm tundra brakes will fit with FJ-80 16" Land Cruiser wheels? I would rather go with 199 mm brakes than grind them.
Does anybody know if 231 mm tundra brakes will fit with FJ-80 16" Land Cruiser wheels? I would rather go with 199 mm brakes than grind them.
#158
Im not sure if this would be possible, But i just did the brakes on my moms 03 4runner limited (bigger brakes) and i will be doing my tundra swap tomorrow, but the part numbers for the 4runner pads and tundra pads are the SAME. So i checked it out and the casting on the 4runner calipers are 13WG where as the tundra calipers are 13WL. I didnt measure anything but does anyone know what the L and G stands for? Maybe we could use the 4runner calipers as a option to. The rotors looked similar/maybe the same. Maybe there is some more input on this?
#159
Im not sure if this would be possible, But i just did the brakes on my moms 03 4runner limited (bigger brakes) and i will be doing my tundra swap tomorrow, but the part numbers for the 4runner pads and tundra pads are the SAME. So i checked it out and the casting on the 4runner calipers are 13WG where as the tundra calipers are 13WL. I didnt measure anything but does anyone know what the L and G stands for? Maybe we could use the 4runner calipers as a option to. The rotors looked similar/maybe the same. Maybe there is some more input on this?
Last edited by KZN185W; 11-06-2009 at 02:26 AM.
#160
Good find. To clarify that is for the 17" wheel only. The 4th Gen uses the 12.6" (320mm) rotor with the 16" wheels 13WG or 13WL calipers too.