who can help me w/ my truck?
 

I don't know where to post this but I need to know if there's a site like this that can help with my '99 GMC Jimmy. I do know a thing or two about cars (have worked on my f-bodies) but no 4x4 experience. Every time I give it more than 50% throttle off the line it makes a weird chhhkkkkkk sound that lasts about half a second. It doesn't do it on slower starts. Is this torque converter related or transmission somehow? Anyone know or know who can help me?
Thanks,
Geoff

You should probably inspect your U-joints. :)