Hello,

I have read many of the posts about the upgrade and it looks easy. I'm wondering about the long-term conequences of this upgrade. I read that there was a TSB where the 199mm calipers were replaced by the 231mm calipers. Are the 199 calipers being phased out? Will I be able to buy parts for these calipers several years from now?

Thanks.

 

Doubt they'll be phased out. Just about every auto parts store carries the 199mm. Even if they are phased out how often do you need new calipers. Plus there's always junkyards.

 

Ditto above, only thing i want to warn you of is to NOT get brembo rotors. I went ahead and got some even after being told not to and they warped during the burn-in. now i have a pulsing when i stop, not as bad as it was before but it is there.

 

i'm sure that varies I used Sequoia brembo rotors and had no problems.

 

It might i just know that it didn't work for me and a few other people and now i have a $150 set of bad rotors.

 

Did you use the insanely hard materialed toyota pads-that be why. Toyota pads are incredibly hard for some odd reason, thats why you can go 80k or mroe on a set.

 

Are the 199mm calipers used on any other vehicles other than those where they are being replaced by the TSB?

 

I've got the same problem, i believe raybestos are better? My brembo's warped pretty quick, but that could also be that my back brakes did very little braking until i adjusted them recently.

 

I use Centric rotors and cheap semi-metallic pads, no problems in the 10k miles I've done. Lots of towing a 3500# trailer in the mountians in those 10k BTW.

As far as caliper availability, I wouldn't worry at all. Absolute worst case would be having to send your calipers to a rebuilder. I can't imagine that happening until at least 25-30 years from now..

Tundra brakes are at the top of my "Best Mods" list, no doubt. Do it, you will not regret it.

 

No, i got a brand name from Pep-boys (it is a good brand just can't remember rightnow.)

 

I have had good luck with the Brembo rotors and Akebono pads. Bought them all from tirerack.com

I have done many trips hauling a trailer and I really like the difference.But I have the 231mm setup.

 

the 231mm could be why it works better.

As i said all i know is that i am out $150 on some rotors that warped the first time driving.

 

I can't remember exactly what the difference between 199 and 231mm calipers is...?

 

the 231mm is bigger than the 199mm i think...

 

in the length of the pad space or width or both? i remember those who have 231mm calipers had to trim their brake dust shield