VS flat battery every couple times I kick her over + new alternator put in

[TokesVS]

Just put in a new alternator thinking it would fix the problem but she still goes flat every couple of times I kick her over.
Battery isn't that old either so not real sure what the problem is.
Also, I rekn I've lost a heap of power and everytime I change gears I get a big thump from the back end, I think.
Any ideas?

[seq4x4]

Your big 3 fine?

As for the clunk in the rear end, could be your diff dieing on you.

[elmaso]

your diff may need some new oil,or it is committing suicide and the battery could be that bastard boot light, happens alot.