Anyone know what these two components are? It’s in the back of the transmission right in front of the drive shaft on a 95 automatic 4runner (a340h transmission)

 

These parts are designed to damp certain harmonic vibrations in the drivetrain that might otherwise become problematic.

 

interesting, do you know the names of them? Or why the one circled in blue connects into the transmission?

 

I do not know their nomenclature; you might look here::

Parts catalog for Toyota 4Runner (epc-data.com)

 

I’ll look around, thanks for the info this was driving me nuts all day!

I have another parts question for you haha the rear abs actuator that has the power steering line running to it, any clue how it works? Or why the ps line runs to it?

 

How it works?? How high is up??

There is a sensor in the rear third member that looks at wheel speed and some arcane algorithm instructs the ABS actuator to modulate the brake pressure so that the rear wheels do not skid.

The power steering hydraulic pressure is the means of getting this done.

In the later 4 wheel ABS scheme, electric servos do all the work, so no power steering hydraulic input is used there.

 

Okay cool, I’m extremely new the the 4runner world lol. Does the lspv not do this same function? Or is the difference that the lspv provides a constant pressure proportional to the load on the diff?

 

The LSPV crudely tries to do something similar.

All it can do is change the proportion of pressure directed to the front and rear brakes, depending on rear axle loading.

The ABS system can pulse the pressure to the rear wheels in order to prevent skidding, in real time.

 

Awesome. Thanks for all the knowledge, it’s much appreciated!