3rd Gen Vibration/Brake issues

[Chabbymeister]

Let's try this again...hopefully in the right place this time....
I've got a 97 SR5 2WD V6 AUTO w/15 inch factory alloys, ABS w/238K miles-Vibration is a seat of your pants vibration all the time while driving-very bad 60 MPH on up..never goes away. Replaced tires twice w/multiple balancings, New driveshaft w/joints, new rear wheel bearings plus one axle, 4 wheels of brakes (more than once). Axle housing appears good & E-brake cables free. Vibration does not transfer into steering wheel. Separate/related issue-replaced brakes twice. When new there's no pulsation..After some time (3 months 1st time, 2 wks 2nd time) I get a slight pulsation in the pedal (rear only) & then moves up front as well (steering wheel, too). If I don't work on brakes, it gets very bad. New Master, front pads, hoses, rotors, rear drums, wheel cyls, hardware and shoes. Front calipers push back in very smooth. I've seen the Haweka recommendation & will confirm w/Discount this week..after last rebalance, manager said they're as perfectly balanced as tires possibly can be. Appreciate any help

 

[Skidmarcx]

I had a similar situation and it was the shoe clearance in the rear brakes being too close causing heat build up and vibration... compounded by warped drums and travelling at freeway speeds it was insane.

 

[snivilous]

Is your engine/tranny/transfer case bolted down properly?

 

[Chabbymeister]

All mounts are firmly bolted down and in good shape. Shocks and struts although stiffer than I'd like are replacments and seem to be functioning properly.

For SKIDMARCX--what was the fix action with your brakes? I've already replaced them twice. New drums and shoes both times with new hardware the last time. I also replaced the Master during the last shoe/drum replacement as the thought was that the Master could be causing them to stick. Toyota told me my entire problem is the fact that I have Autozone parts....not sure I believe that to be the issue.

Anyone else have problems with Autozone Brake Parts causing vibrations and pulsation a while after they've been installed?

Thanks

 

[Skidmarcx]

Basically I run a loose adjustment... Just enough for the parking brake to hold... Not sure how many clicks I don't pay attention to that. If in fact that is your problem you can experiment with your rear brakes