04-21-2019, 09:28 PM
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#1
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4th Gen Brake Upgrade Question
I have done a good amount of research but still have some questions on front brake kits for 4th gens. I have a seized caliper and am looking to do a brake upgrade to potentially avoid this situation in the future as well as have overall better braking performance. I am looking at the Powerstop towing kit on Rockauto.com and wondering if I should get the 4Runner specific one, or if there is any advantage to getting the Tundra one and fitting that for the 4runner. I have a 2006 limited and the 4Runner kit says its a 319mm rotor which I believe is the smaller SR5 rotor size? Any advice or suggestions are welcomed.
4runner Specific Kit: More Information for POWER STOP KC13736
Tundra Kit: More Information for POWER STOP KC232436
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"Keep close to Nature’s heart... and break clear away, once in awhile, and climb a mountain or spend a week in the woods. Wash your spirit clean."
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04-21-2019, 09:48 PM
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#2
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I just did this 36 kit, stuck with the 319s no calipers as I dont have road condition problem like you creating frozen piston.
I'm a lot heavier and over size tires. They have a better bit, and bit harder as they heat up.
This is compared to factory.
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04-21-2019, 10:18 PM
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#3
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I’ve been very happy with the PowerStop Z36 kit on my ‘07 Sport, which has the larger front rotors. While I only needed rotors & pads, I imagine their calipers are good quality as well.
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04-22-2019, 12:00 AM
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#4
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I have the drilled and slotted rotors, Z36 pads and red powder coated calipers on mine, and they are not only awesome looking, but they work WAY better than the original brakes.
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04-22-2019, 10:50 AM
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#5
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Thanks for the answers! Just ordered the Z36 kit including the calipers from RockAuto
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04-22-2019, 12:26 PM
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#6
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Quote:
Originally Posted by tmarton05
Thanks for the answers! Just ordered the Z36 kit including the calipers from RockAuto
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You are just going to use 4th gen parts right? If using 5th gen make sure you stick with 4th gen rotors. The hub diameter is different and will give you problems.
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05-08-2019, 06:06 PM
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#7
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Power stop Z36 with big front rotors dropped off at mechanic tonight after work.
Can’t wait.
Sent from my iPhone using Tapatalk
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05-08-2019, 10:37 PM
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#8
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Quote:
Originally Posted by Sonnystile
Power stop Z36 with big front rotors dropped off at mechanic tonight after work.
Can’t wait.
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Looking forward to your next update. I’m a big fan of the Z36 kit.
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05-09-2019, 04:58 PM
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#9
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First update:
The brand new front passenger side caliper is defective.
My guy can’t even blow air through it.
RockAuto doesn’t have a customer service line, so I sent an email.
Called PowerStop and they said “sorry”, we won’t do anything to help you. Call Rock Auto. Good luck”.
RockAuto responded that they are going to FEDEX ground ship me a new pair of front calipers. I should receive my tracking number within two business days. I was told that if I wanted it any faster, I could :
Go back online
Cancel the new replacement order.
File for a refund instead.
Order a new pair and pay for expedited shipping.
Wait.
Oof. What a day.
Sent from my iPhone using Tapatalk
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2008 4wd V6 Limited Xreas - 2.5/1.5 Daystar - 17" TRD Wheels w/ 255/75-17 BFG KO2's - NFAB Steps - Debadged and 5th Gen REbadged - Maplight Mod - Interior LED Swap - LaminX Yellow Fogs - Gobi Stealth - Powerstop Z36 Brakes - Husky Liners - DeWalt Bluetooth Dongle - Blackedout Headlights with LED's
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05-09-2019, 05:14 PM
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#10
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Quote:
Originally Posted by Sonnystile
First update:
The brand new front passenger side caliper is defective.
My guy can’t even blow air through it.
RockAuto doesn’t have a customer service line, so I sent an email.
Called PowerStop and they said “sorry”, we won’t do anything to help you. Call Rock Auto. Good luck”.
RockAuto responded that they are going to FEDEX ground ship me a new pair of front calipers. I should receive my tracking number within two business days. I was told that if I wanted it any faster, I could :
Go back online
Cancel the new replacement order.
File for a refund instead.
Order a new pair and pay for expedited shipping.
Wait.
Oof. What a day.
Sent from my iPhone using Tapatalk
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And supposedly they test the calipers, so much for QC.
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05-13-2019, 07:50 PM
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#11
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Finally got them installed!
RockAuto sent me a new pair of front calipers to accommodate the front passenger side being defective.
So I’m now sitting on a brand new and working drivers side, and a brand new passenger that needs some “fussing”.
These are part of the red coated, tow rated set.
Anyone interested?
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2008 4wd V6 Limited Xreas - 2.5/1.5 Daystar - 17" TRD Wheels w/ 255/75-17 BFG KO2's - NFAB Steps - Debadged and 5th Gen REbadged - Maplight Mod - Interior LED Swap - LaminX Yellow Fogs - Gobi Stealth - Powerstop Z36 Brakes - Husky Liners - DeWalt Bluetooth Dongle - Blackedout Headlights with LED's
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05-13-2019, 08:16 PM
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#12
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I'll upgrade my Brakes when my V8 gets faster....
Stock Brakes are good enough for bone Stock 4R's
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06-03-2019, 08:13 PM
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#13
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I can't find this info (although it may be in other threads, I just can't find it) - how can you tell the size rotors you're needing?
Thanks in advance, my apologies if this is a repeat question
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06-03-2019, 09:01 PM
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#14
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Been covered a bunch here, but you have to look at the casting on the calipers for a definitive answer. I just did this a few weeks back.
And for reference, this post decodes the castings:
https://www.toyota-4runner.org/1143750-post2.html
Good luck
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06-03-2019, 10:50 PM
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#15
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Quote:
Originally Posted by RickF
I can't find this info (although it may be in other threads, I just can't find it) - how can you tell the size rotors you're needing?
Thanks in advance, my apologies if this is a repeat question
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Quote:
Originally Posted by eleven14
Been covered a bunch here, but you have to look at the casting on the calipers for a definitive answer. I just did this a few weeks back.
And for reference, this post decodes the castings:
https://www.toyota-4runner.org/1143750-post2.html
Good luck
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My calipers don't have the casing numbers on them that I could easily find if at all, I guess they were replaced at some point with some after market Chinese calipers, the way I figured out the size of my rotors was to simply measure them, they will be either 319mm which = 12.5590551 inches, just sightly smaller than 12 9/16", or 338mm or which = 13.3070886, just slightly smaller than 13 5/16", IMHO this is much easier than trying to find the caliper casing numbers on rusty calipers and this is for the fronts only, the rears are the same size on all 4th Gens.
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Last edited by AuSeeker; 06-03-2019 at 10:52 PM.
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