This might be a shot in the dark, but what they heck. Twice, in as many days, my K5 (1986 Silverado, automatic, 305) has stalled out going over the same long, steep bridge. SAME SPOT exactly on the bridge. I'm sure it has something to do with the climb angle and duration of being at that angel, because it runs fine on the trails and in town. The electronics are fine... just had them fixed. Gas says half a tank, and I've had it down to 1/8 of a tank before, so I know it's not the guage that's wrong. I had my buddy push me in his Xterra (i know... hurts to admit that) over the crest of the hil, then I coasted down to the other side where she started like a charm. Kicked out a lot of dark black smoke from the exhaust though, doesn't normally do that. Well, thanks for reading this far. Any advice on what it could be? I am nearly broke, and would like to do the repairs myself, I just don't know where to begin with diagnosing the prob. HELP PLEASE???? The mud is calling my name. The only easy day was yesterday. Second place is a body bag.