Alright... here's a long story made short: packed up mom and dad and an ice chest in the 79 K5 Saturday morning for a two hour trip to sister's house. Made it a half hour down, met my brother, let mom out to buy some green beans at a roadside vegetable stand. When she was done, dad went with brother, mom came with me. We made it a block to a stop sign where I stalled, no big deal. Make it halfway through the intersection where it stalled again. Coasted as far out of the way as possible and called my brother on the CB. We can't figure out what is going on with it and running out of time quick with the truck not starting. So we all pack into his Ford Taurus with the most uncomfortable seats ever made for the long bumpy trip to Sterling. We went back to my truck at about 10:30 pm, 12 hours after it died. After a little bribery and almost giving up, it fired up and I took it 25 miles to Greeley to stay with my brother. The trip was pretty jerky and it was real slow. The next day (Sunday), I wanted to cruise around Greeley, so I took the K5. It started up just like normal, I took it to my friend's house and picked him up, and it was off to Wal Mart for a snow cone (!!!). After a short while, it got jerky again, but I was determined to get a snow cone even if I had to walk. After finishing my lovely snow cone, we pile back into the truck and start it up. It fired right up as normal, but as I was putting a CD in it stalled and wouldn't start. I tried starting it once every half hour for the next four hours and it finally started. So we pull out of Wal Mart, taking the back roads home to avoid traffic. Hit a red light, and when it turns green, I pull out into the intersection and turn. As I turn, it stalls again, so I pull it into a dirt lot (where it looked really cool, btw) and try to start it. We were stuck there for another two hours, ran the battery just about dry trying to start it, and decided to walk the two miles to my brother's house. At 10 pm, we went and it started eventually again. This time it was really loud and when I put it in park it jerked forward, overpowering the brakes. Carefully, I drove it back while it did the same thing as the night before, but worse. This morning, it started right up agian, but was slow to respond right from the start. after about 25 miles of my 52 mile trip back, it got really jerky. I slowed down a bit so it didn't have to work so hard, and it gradually got worse until I was only able to go 50 up a small hill and had up to two second periods of unpowered movement every few seconds while I backfired. I made it home, stalled as I was parking, and stalled right before I put it in park. I'm going to take it to a mechanic and have them check it out, but does anyone have any ideas, preferably free? 79 K5 Blazer Cheyenne.... That's all I have to say about that.