Front diff noise

wfbont007 · 09-09-2007, 09:44 AM

I have a 2006 4x4 four door Tacoma with a 3 inch Toytec lift. When I drive down the street at around 40mph, it sounds like I have mudders on my truck. There is a distinct hum but I don't have mudders and it sounds like my front diff case. If I put the truck into 4 wheel high when the hum starts, it goes away. At road speed there is no hum. When I decelerate to come to a stop, the hum begins at 40 mph and lasts for a couple of seconds before it stops. Anybody heard of this problem or have recommendations?

maverick491 · 09-09-2007, 10:13 AM

Quote:

Originally Posted by wfbont007

I have a 2006 4x4 four door Tacoma with a 3 inch Toytec lift. When I drive down the street at around 40mph, it sounds like I have mudders on my truck. There is a distinct hum but I don't have mudders and it sounds like my front diff case. If I put the truck into 4 wheel high when the hum starts, it goes away. At road speed there is no hum. When I decelerate to come to a stop, the hum begins at 40 mph and lasts for a couple of seconds before it stops. Anybody heard of this problem or have recommendations?

When you did your lift did you do a front diff drop also?

I have heard that tacoma's have problems with the CV joints when lifted, but I do not have any first hand experience with this, just things I have heard.

wfbont007 · 09-09-2007, 11:08 AM

I did the front diff drop also. Today, I removed the drop and test drove and the noise was still there. I re-installed the drop and still there. The noise is inconsistent, sometimes it is more noticeable than others.

maverick491 · 09-09-2007, 11:29 AM

Quote:

Originally Posted by wfbont007

I did the front diff drop also. Today, I removed the drop and test drove and the noise was still there. I re-installed the drop and still there. The noise is inconsistent, sometimes it is more noticeable than others.

Sorry, I am at a loss then, though I suspect that come monday morning when they are back at their computers some of the members more knowledgable about lifting trucks than I am should be able to help you.

wfbont007 · 09-11-2007, 07:48 AM

Is there a possibility that the front drive shaft is turning by 4x4 isn't engaging?

wfbont007 · 09-13-2007, 02:31 PM

Just got the truck back from the dealer. He told me that because there are no shims on the back end for the diff, it is causing a vibration in my front diff/ transfer case. I'm not buying it. Going to a 4x4 shop tomorrow.

wfbont007 · 09-28-2007, 10:31 AM

Truck is fixed. Rear shims did the trick.

nd · 09-28-2007, 11:25 AM

nice, glad to hear you got it taken care of. I'm gonna add the toytec in the future and i'm glad to know what to do if i have the same problem

09-09-2007, 09:44 AM	#1
wfbont007 Junior Member Joined: May 2007, #1584 Posts: 12	Front diff noise I have a 2006 4x4 four door Tacoma with a 3 inch Toytec lift. When I drive down the street at around 40mph, it sounds like I have mudders on my truck. There is a distinct hum but I don't have mudders and it sounds like my front diff case. If I put the truck into 4 wheel high when the hum starts, it goes away. At road speed there is no hum. When I decelerate to come to a stop, the hum begins at 40 mph and lasts for a couple of seconds before it stops. Anybody heard of this problem or have recommendations?

09-28-2007, 11:25 AM	#8
nd AKA: "The Velour Fog" Joined: Mar 2007, #1047 Location: Greenville, SC Age: 27 Gender: Female Posts: 7,138 07 TRD Off-Road 4x4 debadged 2007 Double Cab Automatic V6 De badged, 5100's, Black Toyota Baja wheels	nice, glad to hear you got it taken care of. I'm gonna add the toytec in the future and i'm glad to know what to do if i have the same problem __________________ When life gives you lemons, just say 'Fuck the lemons,' and bail.

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09-09-2007, 11:08 AM	#3
wfbont007 Junior Member Joined: May 2007, #1584 Posts: 12	I did the front diff drop also. Today, I removed the drop and test drove and the noise was still there. I re-installed the drop and still there. The noise is inconsistent, sometimes it is more noticeable than others.

09-11-2007, 07:48 AM	#5
wfbont007 Junior Member Joined: May 2007, #1584 Posts: 12	Is there a possibility that the front drive shaft is turning by 4x4 isn't engaging?

09-13-2007, 02:31 PM	#6
wfbont007 Junior Member Joined: May 2007, #1584 Posts: 12	Just got the truck back from the dealer. He told me that because there are no shims on the back end for the diff, it is causing a vibration in my front diff/ transfer case. I'm not buying it. Going to a 4x4 shop tomorrow.

09-28-2007, 10:31 AM	#7
wfbont007 Junior Member Joined: May 2007, #1584 Posts: 12	Truck is fixed. Rear shims did the trick.