Right drum backing plate just fell apart :(

cauhcons · Jan 3, 2012

Ok so this morning its freaking cold over here and my drum where completely frozen... i couldnt move in 2wd so i put 4 low and this time the truck move with no problem...
I thought that the ice simply brake and let the wheel spin.... but no!!!
The drum backing plate spin where the axle housing is fix on it with 4 bolts....
you can actualy see my brake line that roll on the axle housing...

Does someone already have this problem?

alwaysFlOoReD · Jan 3, 2012

That really sucks!!! I haven't seen this before. I'm guessing you were in water before parking it.
Goodluck,

Richard

LearjetMinako · Jan 3, 2012

Or the part got weakened by the rust.

Captain Ledd · Jan 3, 2012

That's definitely a first for me. And I've pulled some rusted out trucks out from behind sheds. In fact the last one we had to completely remove (read: rip off with extreme force) the drivers rear brake drum so we could tow it home.

ZMan · Jan 3, 2012

Yikes, thats what rust will do. I'm sure you're aware, you're going to have to pull your axle shaft out to replace that, should be a fun job I hope you have a garage to do it!

adsm08 · Jan 3, 2012

That is not a normal mode of failure for the backing plate. Usually they rust through at the pins and just let the shoes fall off.

cauhcons · Jan 3, 2012

adsm08 said:
That is not a normal mode of failure for the backing plate. Usually they rust through at the pins and just let the shoes fall off.

I would prefer that mode of failure, its definitely the rust that weakened the steel... Do you think i have to replace the axle seal ? is that a good idea to change the left side backing plate at the same time, they probably rust at the same spot...

ZMan said:
Yikes, thats what rust will do. I'm sure you're aware, you're going to have to pull your axle shaft out to replace that, should be a fun job I hope you have a garage to do it!

Usually i work in the god garage, but its to cold to work outside -25 degree Celsius...

It breaks my heart to tow my truck to a garage when i know i can do it by my own... 70$/h :annoyed:

As i never remove the axle shaft of course it would be a fun job to do, and it not seem to be very hard to do... just take time...

BTW thank you all!!! this forum is just awesome!!! :icon_hornsup:

wahlstrom1 · Jan 3, 2012

Axle seal is a given as you'll have the shaft out ya migh as well do it anyways.

Celsius eh? Where are ya at, we may be able to find you a shop/garage to use....

cauhcons · Jan 3, 2012

wahlstrom1 said:
Axle seal is a given as you'll have the shaft out ya migh as well do it anyways.

Celsius eh? Where are ya at, we may be able to find you a shop/garage to use....

I'll replace the seal i think its not very expensive...

i am in Canada Quebec city,
there is a place near that is call Garage autonome, you pay by the hours and you can rent some tools, but as i never did this job it can take a lot of time, and i dont know exactly what piece i would need,
so i would have to disassemble to look what piece am needed, and go to buy them, but the problem is that i still pay for the lift by the hours when buying my stuff... I managed all the time my reparation but some time it can took me like twice the time of an mechanic, so this place is really nice when i know exactly what am doing...

alwaysFlOoReD · Jan 3, 2012

It might be easier replacing the whole axle housing and all with a used one.
Good luck,

Richard

martin · Jan 4, 2012

They used to make split replacement back plates. They were made in two pieces and made it possible to replace them without taking the axle apart, just cut the remains of the old one off and replace with the new one. The last time I used one was quite a few years ago so I don't know if they're still available. Try asking around at your local auto-part stores.

cauhcons · Jan 4, 2012

martin said:
They used to make split replacement back plates. They were made in two pieces and made it possible to replace them without taking the axle apart, just cut the remains of the old one off and replace with the new one. The last time I used one was quite a few years ago so I don't know if they're still available. Try asking around at your local auto-part stores.

i call at evrey local part store and they even dont have the standard backing plate, i call at Ford and they only have the one piece style at 71$ grrrr

do you remember where you buy the split backing plate? from what i found there is only GM that made tow pieces backing plate!!!!

upnsmoke · Jan 4, 2012

Are there any junk yards where you pull your own parts around your location? If it wasn't so cold there I would say you should pull a backing plate from a junkyard truck. They would probably charge you next to nothing for the part and it would be a good way to familiarize yourself with the job before you tear into your own rig. Otherwise, I'm with Alwaysfloored. It could be just as easy to replace the entire axle assembly with a junkyard piece, and not much more expensive at $70 for a backing plate. The other thing is, if one backing plate has a rust issue, I would say there is a chance the other one does, and you may be able to find a better piece from a junkyard.

Larry's shee · Jan 4, 2012

Maybe I'm retarded but seems as much if not more work to swap axles, cause you will still want to check brakes, maybe swap stuff if you'rs are newer/good. Plus you know history of yours. Unless you can find a real clean/nice one.

GoodOld85BlueBalls · Jan 4, 2012

Man that sucks! Only thing holding it in is the axle clips. That right there is something I have never seen before! Perfect example why not to set your parking brake in the winter. I did lock one up once from freezing, and did the same thing to break it loose. Ended up pulling the pads right off the shoes!

Right drum backing plate just fell apart :(

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