3rd Gen Brake Booster/ Master Cylinder Question.

[UnderFire]

Just a quick little question that may help me to finally get to the bottom of a severe brake problem my 4Runner's had since day one...

I need you guys to go out and pop your hoods and tell me, how many studs come out of your brake booster and hold your master cylinder to it? 2 or 4?

I need as many people as possible to do this just to be sure... Thanks in advance to anybody who'll check for me.

 

[UnderFire]

Bump, need this.

 

[Mynameistommy510]

Two. 1996 SR5

 

[Dragsterpilot]

Two .... 98 Limited 2WD

 

[mwrohde]

2. 1998 2WD Limited.

 

[yukonrider]

2, 99 Limited

 

[UnderFire]

Hmmm, that's not what I was hoping for, maybe some of the 3RZ guys can chime in...
[MENTION=98735]3rzrunner[/MENTION], [MENTION=98374]awthorn[/MENTION], [MENTION=86041]Mc1337sauce[/MENTION]

 

[awthorn]

[MENTION=90352]UnderFire[/MENTION] sorry for a late to the game reply. My son has been running a fever all day and I haven't been on the forum. I am only seeing two studs and a sort of pivot hook hole in the top left when looking directly at it. Photo attached. Sorry for it being a crappy cell photo, hope this helps!

 

[awthorn]

Not sure if it helps but I have no ABS...thank God!

 

[Mc1337sauce]

I've got two as well, see the attached pic (sorry if it's not the best, on my phone). I know for a fact that I still have the original booster and master on my truck.

 

[Mc1337sauce]

No ABS either, if that matters.

 

[UnderFire]

Thanks guys, looks like my master cylinder is the correct one then.

Its strange, I got an OEM booster out of a 97 3rz Tacoma, and when I went to put it in, it had 4 studs on the master cylinder side...

I'm trying to solve a very hard brake pedal that's impossible to bleed in the rear and thought that the non-OEM booster and MC might've been the wrong one, possibly off an 80 series LC with rear discs. Looks like its back to the drawing board.

 

[IBallEngineer]

Thanks guys, looks like my master cylinder is the correct one then.

Its strange, I got an OEM booster out of a 97 3rz Tacoma, and when I went to put it in, it had 4 studs on the master cylinder side...

I'm trying to solve a very hard brake pedal that's impossible to bleed in the rear and thought that the non-OEM booster and MC might've been the wrong one, possibly off an 80 series LC with rear discs. Looks like its back to the drawing board.

I have a 80 series master in my FJ62, it has four studs as you may already know. My 2000 runner is a 3rz which has 2 studs and looks just like the V6 model. I can't speak to the booster though, that may be your issue.

 

[Rifter]

98 Limited V6 4x4, 2 Studs.

 

[UnderFire]

I have a 80 series master in my FJ62, it has four studs as you may already know. My 2000 runner is a 3rz which has 2 studs and looks just like the V6 model. I can't speak to the booster though, that may be your issue.

Ok, from the couple pictures I saw I thought the 80 Series had 2 bolts. I guess the only thing I'm unclear about now is why the Taco had 4... I'm hoping to go to the junkyard tomorrow and find an OEM 4Runner booster.

 

[3rzrunner]

sorry for the late reply, haven't been on here in a while.

I have 2 diagonally

hope that helped