need help on brake drum plz

[metundra2001]

hi, I have a 2001 tundra v8 2wd original caliper no tsb is done on the brakes. I replaced the rotors with and pads six months ago and I still have good braking power and no shakes, last sunday I replaced my rear drums with brembo and used original toyota brake shoe and now I have bad shake when braking from about 50-60 mph slow braking and it is shaking like the truck is going to fell apart. I adjusted the rear brake drum by using the e-brake foot pedal until pressing it and depressing it lots of times until the truck stop rolling down hill, I already bleed the truck too, rear passenger then the lsv then rear driver then front passenger and the last was front driver. I took off the wheel and clean the drum and the shoe and that kinda helps a little bit , now it is shaking but not as bad as before. What could be the problem? can it be that the drums I put in was bad to begin with? how can I tell?

any help will be greatly appreciated thanks

[MEvang]

Your drums are either not sitting flat of the hubs or they are simply not round.
Check the axle hubs for rust or pieces of the paper shim that came from the original drum. All it take is piece the size of a piece of paper to throw these drums off.
If the hubs are clean, adjust the shoes up using the star wheel adjuster. Do this with the wheel on or at lest the wheel stud in place. If you feel the shoes tighten and loosen as the wheel is rotated, the drums are warped and will need replaced.
Mike

[ICON]

Did you use the old shoes or get new OEM shoes w/the drums??

[metundra2001]

thanks icon, I replaced the shoe with brand new ones original toyota brake shoe along with a new brembo brake drum, I will try to rotate the drum to see if it is out of round like the way you explain it. BTW using the start adjuster to adjust the shoe , isn't it the same using the e-brake to do it as it rotates the star adjuster as you depress it right?

thanks

[MEvang]

You will be able to get the shoes closer to the drum by manual adjusting.
Mike

[ICON]

The only way to get the rear brakes setup properly is to manually adjust them. The best way is get them close with the drum off, put drum and wheel on and while spinning the tire w/your hand turn the star adjuster w/a screw driver just till you feel/hear the shoes touching. Too tight and it'll be an issue and too loose is pointless.

When i put new drums on my truck they vibrated right out of the box, which i brought them back to napa and of course they claimed it couldn't be an out-of-round drum, the rotors are common to come out of the box warped. I meaured them w/my run-out gauge and have a decent amount of run-out so they tossed them on the lathe and of course we heard the high spots getting hit, which i said "told ya so". I also got new shoes at the time just to rule out bad oem shoes and once everything went back together, it's smooth as silk. There's really no true way to know if the drums do have excessive run-out with a dial indicator or a lathe. Sounds to me like the drums aren't true so i'd bring 'em back and at least have them put the drums on the lathe for a quick shave.

Also, the key to good braking and long brake life is to adjust the rear drums once a month. Sometimes it'll only require a couple clicks of the star adjuster, other times a few more. The best thing to do is adjust them a couple clicks, take it for a ride and see how it is. The drum should be warm but shouldn't burn your finger tips. Good luck.

[gilbe0633]

does anyone know if there's a drum to disc conversion for a 2000 tundra?