99 cherokee needs suggestions

[cherokeeshortie]

i have a 99 cherokee when i put it in 4h or 4l it cluncks but its still in hi or lo range any suggestions also i have a ticking down by my wheel any ideas i had a rattle to but i figured that out after no one else could but would like help on this

[citizen@large]

Hi-Ya! Welcome to AF shortie.

-What size engine do you have there?
-When you say:

when i put it in 4h or 4l it cluncks but its still in hi or lo range

Can you be more accurate by that? I'm confused as to what the issue is.
-When does this 'ticking' occur?

It's all in the details for us that can't be in your pockets like the stealership can. xD