Any ABS (and/or '01-02 4Runner VSC/TRAC) experts?

[theferg]

I have this crazy dream where I am wanting to swap some different axles under my '02. This swap would be a complete rear swap and a solid front axle swap as well. Seems like most everything has been done/figured out for a 3rd gen front SAS, but I can't find much on what people have done about the ABS and more specifically--since mine has it--the '01-02 4Runner VSC/TRAC.

I would love to just get rid of it, but I've read a bit about that and it sounds like a ginormous PITA--thus the Andy mod to disable it when necessary. Add in a complete fr/rr axle swap and you obviously get to deal with the ABS/VSC/TRAC.

So... my thought is, hey, I currently am just fine with the Andy mod so it wouldn't make a difference to me if I still get to deal with that after a fr/rr axle swap. So what if the axles you swap in are ABS axles? I know one guy on yotatech that swapped in a complete e-lock rear from an ABS equipped 3rd gen and everything went smooth, so what about other ABS equipped axles? Is there much difference between ABS at the axle/brake side of things between vehicles?--what if the axles were from another Toyota?--aka 80 series LC axles? Does it seem possible that the ABS/VSC/TRAC could still function with the use of the ABS on the LC axles? Or could you swap the ABS units on the axles/brakes? Or is that just plain crazy talk? Also, what about the fact that the LC rear is disk brakes? Would grabbing the LC LSPV and sticking it in line possibly make up for the brake differences?--or would you need the 80 series master cylinder?--could you even do that or is the master cylinder on the '01-02 ABS/VSC/TRAC model 4runners too integral a part in the whole picture?--I mean, i know it is, but could you get a different mc in there somehow if necessary?

Will i be pulling my hair out fighting with the ABS/VSC/TRAC if I attempted such a thing?--and should I just forget it and go with an earlier 3rd gen?

-Ferg-

 

[bowyer2002]

I read your post and I am entirely NO help - this project boggles my mind! Good luck!

 

[KliersLC]

You need to see if your sensor is compatible with any other axles. As long as you can use your factory sensor and the exciter rings are close to the same design, it should work fine. The trick is getting YOUR sensor to work on other axles. Depending on the axle, it could be plug and play, or it could require some fab.

The thing to remember is to not overthink it. ABS/VSC is based off of your abs sensors period. The rest of the axle matters not. If you can make your sensors play with another axles exciter rings, great. You may even be able to use other vehicle (80 series maybe) sensors if they plug into your harness.

HOWEVER: You will want to stick to as close to factory specs as possible when fiddling with this stuff. If the VSC takes over and it thinks it is doing one thing, your hodgepodge of parts may cause it to do something completely different. This makes for a bad day.

Good luck,

Dan

 

[JLHEEPETR]

I am dealing with the same problems and will let you know what I find out. I have a '99 4Runner and am in the middle of doing a SAS that will eliminate the front ABS sensors. I'm looking into pulling the entire ABS system and re-routing the brakes. Aside from the ABS light coming on I'm not sure what other side effects this will cause.

 

[KliersLC]

I am dealing with the same problems and will let you know what I find out. I have a '99 4Runner and am in the middle of doing a SAS that will eliminate the front ABS sensors. I'm looking into pulling the entire ABS system and re-routing the brakes. Aside from the ABS light coming on I'm not sure what other side effects this will cause.

This shouldn't affect your brake system much, but I would caution you about changing too much stuff. If you pull out the entire system, you need to make sure that the proportioning ratio remains the same or it will really screw up your braking and handling performance. You should be able to bypass the pump and keep everything else, but I would reccomend leaving the plumbing intact and removing the electrical components. If you can't make the light shut off, pull your dash and remove the bulb.