Brian wrote:
> I have a 91 YJ w/ 4.0 5speed manual. During the recent snow I got
> stuck on a hill. Just a normal hill plenty of other SUV's pass me.
> Took me a long time to finally get it up the hill. I was upset to say
> the least.
> Anyway when slipping the rear end would get sideways (as if in 2wd)
> and a knocking sound would start that sounds like it's from the front
> end or maybe directly underneath me. It sounds similar to not fully
> engaging the 4WD if anyone has done that in their YJ.
>
> Anyone have any ideas? Transfer case? Shift linkage? or what. Any
> input would be appreciated....
>
> -Brian

Do your vacuum lines run under the battery? If they do, they could very well
be cracked and broken.