Author Topic: weird sounds from my dana  (Read 812 times)

Offline dutch

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weird sounds from my dana
« on: March 11, 2010 - 05:55:57 AM »
hey guys,
I`m about to pick up work on my car again and the first thing I`d like to tackle is the rearend ( dana 60 with 4.10 gears) . Before I took apart the car I drove it a few times. It had been garaged for 8 years or so when I got it.  I changed fluids before driving and there was a little bit of metalflake in the rear end old oil.  While accellerating there was a sound coming from the rear , kinda oscillating resonation.  Only when accellerating. The sound disappeared when I let go the throttle.
I thought maybe the inner pinion bearing could be shot,  but since I never took apart a rear end before ( in fact, I`m not looking forward to do so either... ) I`d like to hear some opinions first.  Could this sound be caused by something else too?  maybe wrong pinionangle or something?
The rear is obviously not in the car now and brakes are off. When I turn the axles or yoke, it feels real good and smooth... no play anywhere...  :dunno:
*** Bart ***




Offline Changin Gears

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Re: weird sounds from my dana
« Reply #1 on: March 11, 2010 - 08:05:45 AM »
Sounds like the gears were set up incorrectly, a pinion depth or backlash issue.


The goal never changes - Stop the 60' timer with your back tires

Offline dutch

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Re: weird sounds from my dana
« Reply #2 on: March 11, 2010 - 03:32:39 PM »
can this be diagnosed without taking the whole thing apart?
*** Bart ***

Offline moper

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Re: weird sounds from my dana
« Reply #3 on: March 11, 2010 - 08:30:18 PM »
Pull the cover, hose it really well with brake cleaner while rotating the pinion. Then get some gear marking compound and run a pattern. Post the pics of it.

Offline dutch

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Re: weird sounds from my dana
« Reply #4 on: March 12, 2010 - 02:37:06 AM »
I will give it a go tomorrow.
thanks
*** Bart ***