Douglas DC-3

[E.T.]

Anyone know why I might have a roadspeed-dependent hum which sounds like the above? It seems to come from the front end but is worse with a (480lb) load in the back..

 

[Joe in NY]

wheel bearings

 

[E.T.]

Thanks Joe. Rear right was buggered, had to replace the entire knuckle! Apparently the autoshop bent a 5 ton press trying to get the old sleeve out..

 

[Number4]

Thanks Joe. Rear right was buggered, had to replace the entire knuckle! Apparently the autoshop bent a 5 ton press trying to get the old sleeve out..

5 ton press tells you this shop doesn’t know what they are doing, go else where for other repairs.

Just saying.

 

[Joe in NY]

30 ton shop press or a 30 ton log splitter work perfectly!

 

[miker104]

Next time I have to do one I'm using one of these (Dorman Loaded Rear Knuckle)

 

[E.T.]

Joe and #4: I learned things here, thanks!
Miker: yarp. Costly but less headache. Careful not to damage the aluminium control arm with the maul like I did!

 

[TechGuru]

Next time I have to do one I'm using one of these (Dorman Loaded Rear Knuckle)

I'd get the MOOG not the Dorman...

 

[domct203]

I'd get the MOOG not the Dorman...

Agreed. Get the Moog.

 

[Drewmcg]

RockAuto sells the OE Motorcraft (BRG4) or SKF bearing for $200 less per side (shipped) than those assemblies. You have to have to remove/reinstall the knuckle either way.

Are you saying the shop charged you more than $200 to press in a bearing?

Personally, on my 3rd Gen (over 200k miles) and 4th Gen Exploders (over 130k miles), I keep a spare new rear bearing in the back of the truck. That way, if a bearing fails on a long trip, I have the part. Just need to find a local shop to press it in. Extra insurance.

 

[miker104]

RockAuto sells the OE Motorcraft (BRG4) or SKF bearing for $200 less per side (shipped) than those assemblies. You have to have to remove/reinstall the knuckle either way.

Are you saying the shop charged you more than $200 to press in a bearing?

Personally, on my 3rd Gen (over 200k miles) and 4th Gen Exploders (over 130k miles), I keep a spare new rear bearing in the back of the truck. That way, if a bearing fails on a long trip, I have the part. Just need to find a local shop to press it in. Extra insurance.

Getting a shop to press it in may be easier in some places. After the pain I went through doing this job, I will just buy the assembly and be done with it. To each their own.

 

[E.T.]

I personally had to move interstate within a week of discovering the issue, so my only choice was O'Reilly's. One machine shop sat on the knuckle for an entire week and did nothing, before shop 2 failed to press it out..

 

[miker104]

The Moog ones don't have the parking brake shoes installed which was the biggest pain of the job!

 

[Drewmcg]

The Moog ones don't have the parking brake shoes installed which was the biggest pain of the job!

Nice catch. I take your point about the extra challenge of finding a suitable/reasonable/competent mechanic. Its quite an adventure. The saving grace in (at least in Michigan) is that you can push for a written estimate up front (and walk if you don't like it)-- which constrains the shop from gouging you later.

 

[TechGuru]

Nice catch. I take your point about the extra challenge of finding a suitable/reasonable/competent mechanic. Its quite an adventure. The saving grace in (at least in Michigan) is that you can push for a written estimate up front (and walk if you don't like it)-- which constrains the shop from gouging you later.

Here them up front written estimates are way way way over shot.

 

[TechGuru]

The Moog ones don't have the parking brake shoes installed which was the biggest pain of the job!

Hmmm, cheaper AND comes with shoes? That tells you a lot about the quality differences. What brand bearing comes in the Dorman? The Moog comes with a National.