2004 one piece drum hub issue. Sorry, it's still around ...
I have a 2004 hatchback with around 100k miles on it. Just wanted to pass along some info on this and that. It might even be useful ... :p
I have one drum that's worn oversize (over 201 mm). I might even replace both, since the bearings might be ready to go. The following might be useful to know which you have w/o looking, if its a 2004. I read on the AutoZone webpage that for the 2004, the transition to the split hub / drum came about after the following VIN number (last 8 digits, see below):
In the Autozone Repair Guides, this info is listed here:
| Repair Guides | Rear Drum Brakes | Brake Drums | AutoZone.com
And stating that VINs prior to xxxx xxxx x5B426447 have the combined one-piece unit. I've also seen the ACDelco p/n of 177-0455, but not sure of which that refers to.
A further indication for the early design is the code J41 listed on the glove box sticker. If JM4, it's the later design.
According to local GM dealers, the one-piece p/n is 96473234, with a list price of $ 211.10
But ... that p/n crosses in their system to the later hubless units with some retailers, CarQuest for one.
Points:
- The one piece unit weighs ~ 11 1/2 pounds, the hubless weighs ~ 8 pounds.
- The bearing hole measures 25 mm, but the AutoZone ad, which shows a picture of the original hub (bearings and bolts), but lists the opening as 52.6 mm, the actual size of the hubless one. The ad is on this forum, or Google autozone + 21104.
- Also, the AutoZone lists the weight as 9.99 pounds, which is closest to the hubbed one. But is it? ... :scratch:
If I order one online, I'd hate to get the wrong one. Any thots?
HELP: same problem... can't get into the hub/drum
Hi Leebowmen / Members,
I am having a heck of time with my rear drums. I have a 2005 Aveo LT... however the code says J41, so I believe they are one piece (I discovered this after trying to pull the drum with a puller). What parts do I need to replace? How did you get into the drum/hub to get to the shoes, springs, etc??? I removed the drum/hub from the axel... by removing the 4 bolts on the back of the hub. My parking brake is still attached because I can't get into the drum/hub. Any help / photos etc are GREATLY appreciated! Thanks! Tom
5 Attachment(s)
Ratcheting the star wheel for easy removal of drums
Quote:
Originally Posted by
petrified.rabbit
there should be an access hole behind the star, or toothed part of that rod so you can wind the shoes back in, to ease removal of the brake drum.
Here's a PDF file with some general information regarding drum jobs:
http://www.wilcoxbrosco.com/pdf/DrumBrakes.pdf
It shows a typical star wheel access port:
Attachment 4882 Attachment 4883
Yew, there should be one, but not on my 2004 hatchback. In this instructions (above), it says "Some cars have a filled access slot that must be punched out to gain access to the adjuster." That makes no sense either ...
Didn't see one, so when I did the job back in August, got the drum off using force. But tonite, I just had the thot, 'maybe I missed it.' So I jacked it up, and took a peek. Wide shot and a closeup.
Attachment 4884 Attachment 4885
It may be there with some Aveos, but not this one .... :protest:
Are there ports on later models? I understand that they now come with disk brake on all four wheels.
:sleepy2: