Clunk noise when on throttle...help needed

[persius1]

07 H3 When I'm in drive and tap the throttle or lay off then step on it I'm hearing a clunk sound. Not sure what to make of it, but my guess was there is play in the universal joints. Anyone ever had this issue? I'd like to get it fixed before the October meet.


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[IISPEEDYII]

That's normal pretty sure. We all get it, might be wrong though


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[Bigunit]

Church your front diff mount bushing. If the bushing is shot, your pumpkin will move around on acceleration & deceleration when you tap or lay off the throttle. Not only was my bushing shot but My diff mount bolt was completely sheared off and the was bouncing up and down, forward & backward like a basketball.

 

[persius1]

That makes sense bigunit because I also hear metal to metal sound on road bumps.


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[persius1]

Church your front diff mount bushing. If the bushing is shot, your pumpkin will move around on acceleration & deceleration when you tap or lay off the throttle. Not only was my bushing shot but My diff mount bolt was completely sheared off and the was bouncing up and down, forward & backward like a basketball.

Where is the mounting bushing located if I'm looking at it from underneath the vehicle?


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[Bigunit]

The front cross member that the front diff rests on/is mounted to. This is a very common issue but easy to address. A long bolt goes though the bushing and metal sleeve in the cross member and the nut to that bolt to tighten it down is on the top side of the front diff.

 

[persius1]

The front cross member that the front diff rests on/is mounted to. This is a very common issue but easy to address. A long bolt goes though the bushing and metal sleeve in the cross member and the nut to that bolt to tighten it down is on the top side of the front diff.

Here's what I found. It looks like the bushing is worn because the bolt is off set. Tell me what you think.

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[cgalpha08]

That thing is smoked!!!! The inner sleeve is completely ripping out of the rubber that's in there!

 

[rascole]

Time to call ScorpWorks. One of the easiest upgrades you can do, well worth it.

 

[Bigunit]

That bushing is shot! That explains the clunk that you described - your diff is moving around like you would not believe.

 

[persius1]

Well I'm glad you all are able to pin point it lol. I had no frame of reference to what it's supposed to look like, but I'm assuming that bolt/washer should be flat against that cross member.

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[Bigunit]

Yes, this is what it should look like. When it was time to replace the one on my T, I got the crossmember w/new bushing replacement from Scorpworks, one of our forum sponsors. Mine is going on four years old and still shows no wear at all.