Alexia Posted May 8, 2015 Share Posted May 8, 2015 I have an aluminum driveshaft in the rear. Moving into gear is a nice metallic clang from the driveshaft which I am fine with. However, coasting it sounds like a metallic tube of rocks rattling about as the differential loads and unloads. Driveshaft has unknown miles on it, but the u-joints were replaced 4,600 miles ago when the whole MJ was put together. There is nothing visually wrong with the driveshaft and replacing it with steel seems like a waste. Link to comment Share on other sites More sharing options...
HOrnbrod Posted May 8, 2015 Share Posted May 8, 2015 That's the one you bought used from a CC member awhile back? Has it rattled like that from from day one? Link to comment Share on other sites More sharing options...
Alexia Posted May 8, 2015 Author Share Posted May 8, 2015 That's the one you bought used from a CC member awhile back? Has it rattled like that from from day one? Yes and yes. I found a simple and dumb potential fix searching around last night. People have used those rubber/silicone wrist bands around the shaft to dampen the vibration for this issue with some success. I grabbed a couple from the marketing department at work and plan to try that tonight. Link to comment Share on other sites More sharing options...
HOrnbrod Posted May 8, 2015 Share Posted May 8, 2015 Sounds logical. Link to comment Share on other sites More sharing options...
Zebvance Posted May 9, 2015 Share Posted May 9, 2015 That is odd. I never had that issue when u had it. Was very quiet. Only thing is I was getting slight vibrations around 20-30 mph. That was because of the angle it was at and it being to short. I had to much lift for it, that's why I got the SYE and sold it. But never heard any nosies. Link to comment Share on other sites More sharing options...
Zebvance Posted May 9, 2015 Share Posted May 9, 2015 Oh and I think that I still have the receipt from when the PO of my truck put it on. Unless I sent it to you with the drive shaft. I know for a fact it had less that 10,000 miles on it when I sold it. Link to comment Share on other sites More sharing options...
shelbyluvv Posted May 9, 2015 Share Posted May 9, 2015 It's possible you have a little play in the transfer chain or the ring and pinion. The shaft will make the "ping" a lot louder. My truck "thangs" pretty loud from reverse to drive. Link to comment Share on other sites More sharing options...
64 Cheyenne Posted May 9, 2015 Share Posted May 9, 2015 Just cause you got new U joints, doesn't mean you couldn't have gotten one that was made on a Monday. Link to comment Share on other sites More sharing options...
Alexia Posted May 9, 2015 Author Share Posted May 9, 2015 That is odd. I never had that issue when u had it. Was very quiet. Only thing is I was getting slight vibrations around 20-30 mph. That was because of the angle it was at and it being to short. I had to much lift for it, that's why I got the SYE and sold it. But never heard any nosies. Oh and I think that I still have the receipt from when the PO of my truck put it on. Unless I sent it to you with the drive shaft. I know for a fact it had less that 10,000 miles on it when I sold it. The rear pinion gear in my rear differential has about 10º of movement before it engages, but the pinion seems to be tight.(According to the installer it is fine.) So basically every time it loads up while coasting, clang! I put two of those silicone wrist bands on and it helped a little. Going to collect about three more and toss them on there. Wrapping my hand around it kills all the noise while manually rotating the tire. I did take the opportunity to clean some undercoating over spray off the drive shaft and polish it some. You probably have the receipt for it. Link to comment Share on other sites More sharing options...
Zebvance Posted May 9, 2015 Share Posted May 9, 2015 I'll look for it tomorrow night and will be happy to mail it to you, just for keep sake. But I can confirm a date and that will narrow down the mileage better Link to comment Share on other sites More sharing options...
Alexia Posted May 9, 2015 Author Share Posted May 9, 2015 I'll look for it tomorrow night and will be happy to mail it to you, just for keep sake. But I can confirm a date and that will narrow down the mileage better Just message me the details if you find it. :D To be clear, I understand this not a problem with the driveshaft and just my MJ's particulars turning it into a giant tuning fork. Link to comment Share on other sites More sharing options...
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