Noises in the diff.

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Sep 23, 2003 | 10:49 PM

cwb

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Noises in the diff.

I just got my truck back(02' psd) with 4.56's and dual arb's. I put the truck in 4wd for just a few miles on flat straight concrete without the lockers engaged at all. The noise, clanking, vibrating and such was awful. I have loud tires and at thirty I could hear the front diff howling over the tires. I talked to the installer and he says this is a normal part of the break-in but I just don't buy it. It used to be that when I put it in 4 that you could barely tell. Anyone have any thoughts?

Sep 24, 2003 | 09:54 AM

Texan1983

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From: Des Moines, Iowa

Noises in the diff.

ask him when he thinks it will go away. then make sure that after that time you can bring it back to him to get t fixed right. i don't think you should have any noise with break in. i know that the gears should make no noise at all, not sure what noise that locker will make. but if the gears are making noise that almost never goes away, there should be no noise if set up right.

Sep 24, 2003 | 08:12 PM

FordPerf300

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From: CT

Noises in the diff.

What kind of gears did you have installed, supposedly the cheap gears will make some noise, not a loud howl, gears should not make that kinda noise when breaking in.

Sep 25, 2003 | 02:50 PM

bebad96

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You might want to check the fluid too...The mechanic might not of put enough in.

Sep 25, 2003 | 06:11 PM

RRMike

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From: Roseburg OR.

CWB,

Are you actually putting the truck in 4x4 or just locking the hubs? If you are putting it in 4x4 try to just lock the hubs in and see if there's as much noise then.

Sep 25, 2003 | 06:31 PM

cwb

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Yeah, I have tried all of the above. Gears are from Randy's and even called them to confirm that as well as the spline count and size of all the other stuff he ordered. Finally he says that he may not have changed the pinion bearing but Randy's says that that should only make noise on deceleration. I am going back tomorrow to let him fix it. I am leaving for a month to Sac-to on Monday so he better fix it or there is going to be an ***-whoopin. I tried the hubs and no noise so it's not the wheel bearings or the hubs.Not supposed to be this damn hard. On the up side it will hopefully be done for a trip to hollister hills while I am in Sacramento.

Sep 25, 2003 | 10:54 PM

proeliator

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From: Oregon

If the lash is set incorrectly gears will make noise like that (which is what I'm suspecting, allot of guys screw up on that). Either way he needs to get in there again...