03 SILVERADO DRUM BRAKES

Hope this helps: http://www.silveradosierra.com/brakes/video-showing-brake-pads-and-rotor-change-on-a-silverado-t12471.html

check brake pad. it must drum fitted.

the front have disc, brakes. as well as the rear. 2 and 4 wheel drive have disc, brakes front and rear. good-day !

If your current rear end has disc brakes then you need to find one with disc brakes or swap all the disc brake stuff over to the new rear end. Drum brakes and disc brakes take a different amount of pressure to activate and the system is set up at the factory that way. You should be able to move all the brake components to the replacement rear end.

Generally speaking, the front brakes do most of the work of stopping--typically between 70-90%. The potential reasons for your truck's rear brakes wearing abnormally quickly include:

--the adjuster(s) on your rear drum brakes were adjusted too tight. (I'm pretty sure you have drum brakes in the rear.)

--You are doing a lot of heavy towing or hauling which is transferring more of the weight to the rear brakes. You'd have to be doing this often, though, and frequently meeting or exceeding the capacity of your vehicle to tow or haul.

--The proportioning valve, the master cylinder or a brake line somewhere is damaged, causing more hydraulic pressure than is correct to be applied to the rear brakes.

-- Your parking brake cable is kinked or damaged, causing the rear brakes to constantly rub. You'd likely smell burning brakes and notice heat from the wheels.

-- Your rear drum brakes are clogged up with brake dust and the springs cannot properly retract the brake shoes, resulting in constant rubbing.

Most likely one of these issues is your problem if you have premature rear brake wear.

YOU HAVE REAR DRUM BRAKES YOU NEED TO TAKE THEM APART CHANGE RETURN SPRINGS AND CHECK WHEEL CYLINDERS ITS ONE OR THE OTHER

This year of truck did have issues with rear disc brakes. Quality of pads is extremely critical. Go with the AC Delco pads and rotors to eleviate some of the issue. Make sure that the slide pins are liberally lubricated and move freely or drag will cause excessive heat to occur. Let me know if you need anything else.

You will need to have the parking brake adjusted to the minimum clearance possible and double check the shoes & drum while off.

It sounds as though the shoes are loose, they move forward, grab & unil you center the brakes by applying them and then they release until put into a bind again.

These usually don't get adjusted or even looked at since they are hidden inside the brake rotor hub on the rear wheels.

good luck.

http://www.liwebmasters.com/el%20camino/schematics%20and%20diagrams/images/Brake%20Drum%20Exploded%20View_gif.jpg

http://www.careersnet.org/automotive/PHS/Photos/Engines/engine%20Photos/Drum%20Brakes%20TEST.gif


If neither of those helps, please email me at davidsawesome (at) gmail (dot) com and I'll scan a picture from my 96 sephia repair book.

front or rear? 2 or 4 wheel drive? drum or disc in the rear?
i would be glad to help with some info on where you are at with this job.
Scott