Noise from suspension

Marcus · Sep 22nd, 2006, 11:35 AM

I'm having trouble tracking down a noise on my 89' D21 2WD. When I make a turn or go around a bend or curve I get a thunk from the rear end of the truck. I replaced all four shocks since they were worn beyond belief. The ride was improved but I still had this noise from the rear end. I looked under the truck and could see anything wrong. I rocked the truck from side to side while parked and I couldn't hear or see anything. I'm thinking I have a broken spring? I couldn't really see or tell if one was broken and the left/right sides are level in height. I'm thinking that I have a possibly broken transmission mount. What should I look for and what could be the other possible problems?

**88pathoffroad** · Sep 22nd, 2006, 04:00 PM

Maybe the spare is loose and shifts around under enough pressure, which would be more than you can generate by pushing on the truck.

Marcus · Sep 22nd, 2006, 11:40 PM

I'm going to take the spare off and drive it around the block to see if the noise goes away. Thanks for the tip though.

93Hustler · Sep 23rd, 2006, 07:50 PM

I have the same noise as decribed. I thought my noise was my exhaust system because the bracket half down is broken off and it was banging around. I also replaced the bolts to the box in the rear which were really loose. My spare tire is tight athough the chain is hanging down. Still I get the clunk. Let us know what solves your clunk so I can try it.

Marcus · Sep 24th, 2006, 01:43 AM

My 95' does the same thing but it hardly ever does it and it's not that noticeable. You have to be really listening hard to hear anything. On the 89' I can hear it all the time. I'm thinking that it might be a bad motor or transmission mount. We'll have to see.