2000 chev 2500

[hammeron]

Had a loud bang in rear of truck driving down the road. Seemed like the diff blew out. As it rolled to a stop could hear a ticking noise coming from the rear end. Stopped checked everything seemed fine. Drove ok after all the way home. Happened again when hit a bump in the road. Stopped again to check everything looked ok. Whats up with that?

[j cAT]

Originally Posted by hammeron

Had a loud bang in rear of truck driving down the road. Seemed like the diff blew out. As it rolled to a stop could hear a ticking noise coming from the rear end. Stopped checked everything seemed fine. Drove ok after all the way home. Happened again when hit a bump in the road. Stopped again to check everything looked ok. Whats up with that?

check the leaf springs/spare tire holder

[hammeron]

Springs are fine. Axle seals were changed in the fall. Sometimes it will clunk really heavy when I accelerate after backing up. Universal joints are ok.

[777stickman]

If you have the G80 locking rear end, it could be an issue with that. For sure, pull the cover and look for any thing wrong.

[hammeron]

It has a normal rear end no limited slip.

[j cAT]

Originally Posted by hammeron

It has a normal rear end no limited slip.

with a 2500 if its 2wd then very possible you have OPEN DIFF.. If you have 4WD then you have the eaton locker diff. with this type diff I would also recommend removing the diff cover and rotate the axles to inspect all the gear teeth and any other metal . wash out with mineral spirits paint thinner low odor is what I use and install the 75-90wt synthetic gear lube .. I use the mobil gear lube. how many miles on this ?

check RPO codes for gear type /diff type..

[hammeron]

Yeah I will take the cap off and check that out. There is 230 ks on it. Thanks everyone for your help. I will get back with what I find.