>> Yes, the Jimmy is 4x4 but it does this noise in 2wd. Also noise
>> occurs when accelerating fast and tranny shifts from 2nd to 3rd then
>> after noise goes away.
>
> You may have what was a common occurrence with these transfer
> cases. The snap ring on the rear output shaft would break, which
> allows the entire output shaft and internal components to move
> enough that the drivetrain in the t/case jumps out of engagement
> momentarily. Usually happened when you put a good load
> on it (like accelerating).
>
> That's one thing I would check out. If you catch it early, you
> can simply install a new snap ring and away you go. If you
> keep driving it while it makes that noise, you are simply
> destroying components in the t/case.
>
> Ian
>