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I have a 2001 Ram 2500 pickup, Cummins, auto, 2wd, Rear disc brakes, build date 5/2001, Dana 80 with posi. The parking brake backing plate/dust shield assembly are rusted beyond safe service use. I have removed the rear rotors, calipers, caliper mounting brackets, parking brake shoes, parking brake actuator etc. There are four very large bolts that mount the bearing hub assembly to the Dana axle. The backing plate/dust shield appear to be sandwiched between these components. How is the backing plate/ dust shield assembly removed and replaced. Is heat required to separate the hub/bearing assembly from the Dana axle. What is the best way to replace these backing plates, where can they be purchased aftermarket if possible and what is a good price for them. Any ideas? Thanks.
You are on the right track so far but you need to remove the bolts on the outer end of your axle shaft then pull the axle shaft out completely, then remove the large inner nut I believe it is a 2 9/16", then you can remove your hub/bearing assembly. now if you have your brakes off you should be able to remove them 4 large nuts and slide it right off. Good luck.
Thanks for your response Sledwrecker. Is there a gasket or rtv seal between the bearing hub and backing plate and between the backing plate and the end of axle tube?
Another concern is; because this truck was driven in the rust belt here in Canada for 9 winters is there a chance or is it likely that the removal will be difficult and require heat to separate the hub and axle tube?
If this pic. works this is what the axle tube looks like with the hub removed. The only place you will have RTV sealant is on the head of the full floating axle shaft itself where it bolts to the hub. The hub has a seal on the back side that rides on the axle tube. If you need more pics let me know. http://i987.photobucket.com/albums/a...01128-1712.jpg
there should be no problem getting the hub off the tube once you get the shaft out (which should be painless) and get the big nut off that sets the preload on the bearings inside the hub. I happen to have mine apart as I type this. I was going to take 10 min. and put my studded 35's on for the winter today and decided to adjust the parking brake shoes up while I had the tires off and discovered both wheel seals were leaking so here I am waiting for the partshouse to open in the morning.
yeah no prob. That nut that holds the bearings in might be a little problem for ya. most people dont have 2 9/16" sockets in the tool box. I think I am gonna pick one up tomorrow for reassembly. Good luck. BTW you might want to put new seals in when you pull your hub off, it's good practice and make sure you put some oil back in the hub when you reassemble it so your not runnning your bearings dry for awhile. Otherwise it could take awhile for the rearend to splash enough oil out there.
how did you make out with the dust shield and backing plate? Im in the same boat as of tonight, everything apart and was simple just wondering on pricing for those parts and what to expect when i call the stealership.
To get oil in each wheel bearing raise the opposite wheel at least 10 inches.
2008 3500 stock QCLB dually Inferno red. Toys: Fuel injected Rampage, Road Grader, 1586 tractor, 60K genset, Honda ATV, and more. Back in business with a Hitachi EX270LC excavator. The dirt slinging has begun with 50+ acres to clear.
The Following User Says Thank You to dozer12216 For This Useful Post:
Hi Steve. Sorry for the late reply. Just back from a 2 week trip to Turkey. It has been a while since I did this job. As for the parts I elected to check out Ebay and I got lucky and found a pair of perfect rust-free used 2500 disc brake rear dust plates/shields complete with perfect used parking brake shoes mounted with hardware for cheap from an Oklahoma wrecker. I cannot find the purchase on Ebay I guess it goes too far back. I can't remember the price but $60 US rings a bell with shipping. Sorry I cannot be of more help.
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