2 problems on opposite ends! 06 dbl cab LB sport!

Ok, so within the last two months my bed has developed a funky clunking sound when i pull into drive ways or go over small bumps that cause the bed to articulate. I have tried to pin point the sound but cant. I think it has something to to do with the bed and how it bolts to the frame.

My next issue is, I went wheelin a week ago just down a old wash after it rained with my wife to just have some fun in the mud. Nothing crazy at all, no climbs, no flexing, rock crawling, or even the need of 4 wheel drive since there wasn't really any mud. After parking my truck for the night I noticed a oil spot under the front drive side. I looked under and smelled the oil and it was Differential oil. I look under my truck and it looks like the diff oil is leaking from where the axle goes into the front differential (if that's what it is).

Does anybody know what in the world is clunking in the rear?

My diff oil leak, is it because a seal went bad?

Has anybody experienced these problems before?



Here is a picture of the leak and what I believe to the source.

 

ummm.. I seriously hope I'm not that only person to have ever experienced whats going now now.

 

X2 on the seal... As for the bed I experienced a similar probably make sure your bed bolts are tightened down... I believe the size for the bed bolts is a t55

 

Sorry but I don't understand. Can you clarify what you mean by articulate?

 

ok so with the seal being bad is it going to be expensive to fix? I'll check the bed bolts.

 

I checked all my bed bolts and they are all very tight. Wouldn't even budge. So what else could possibly be clunking when the rear suspension flex's?

 

Shouldnt be bad if you fix it yourself. If you have a shop do it it could probably end up bein a couple hundred bucks id guess.

Broken or loose shock maybe?

 

OK, I don't know how your bed can articulate so that is why I asked. Just trying to help here. I have the same truck. I am sure it is not the bed bolts, some owners here have used a breaker bar to get them loose for D rings because they are so tight. Check your leaf springs and there is another link here about this. The three pack non tsb springs have a rubber piece that will wear out and your leaf springs could be slapping against each other.

 

Ok so I had my wife take the truck up a VERY bumpy dirt road with me in the bed and I located the clunking sound. Oddly enough, even after checking the bed bolts and seeing that they were so friggen tight I thought my torx bit was going to break, it turns out the driver side one closest to the cab pops and clunks as the bed moves around. I guess I need to throw another washer on there or something because the bed moves under it.

As far as the axle seal goes I just need to replace it. I refuse to pay the stealership so I'll just do it.

Thanks for the help and tips

 

Seals are not that hard to do by your self, if you know how.