Just got the truck out of the shop. What a difference. The noise is completely gone. Even the noise at low speeds that I had attributed to the transmission (because the noise changed depending on the gear) is gone. The noise must telegraph right up the drive line. The tech said he had never seen one like this. Figured it was a soft pinion. If this fixes it permanently, I will be a happy camper. FWIW.

Casey

 

Was this just a replacement part? Or did DC make some updates?

 

Sorry, I should have given more information. The dealer installed a new ring and pinion to correct a god awful howl at 65 mph. They are a matched set. I would have preferred a whole new axle assembly but if this fixes it, I will be ok with it.

 

Casey,
Do you have any shudder in low gears with your fiver on? Only 1st, 2nd and 3rd if pushing it. You are loading at about what I do, so it would be interesting to see if yours has it too.
Any rattle at low rpms especially in lower gears? Wish my dealer could pinpoint my problems.
Bob

 

Bob,

No shudder or rattle. Never had it. Have they replaced your clutch?

Casey

 

Thanks for the info! Hope it works out for ya!

 

Casey, I had the same problem / fix on mine. About 35,000 kms on the truck and ring & pinion were replace under warranty. Bonus is that this weekend when I'm changing driveline fluids, I don't have to do the rear end !

 

That was the first try - - new clutch. I guess the new one is a little heavier than the first with different springs that are not supposed to rattle when in neutral.
Bob

 

I had my trks axel in the shop 3 tomes first 2 they changed the rack and pinion no luck ask for a new setup they did it ,300 miles later the howl was back I now have 30,000 on it at 20,00 the howl was still there, thank God for XM and good speakers anyway hooked up my new 5th whell{7800 lbs 200 miles later wheres the howling rearend ,I guess the weight seated the gears?

 

rack and pinion?

 

Rack and Pinion????... Must have been the steering end that had the howl Nat

 

DOH!! I think that would be a ring and pinion.

 

OK guys the laugh is on me !!!! ring and pinion, whew boy o boy du and all the rest I stand corrected guess i need to proof read first!