86 sierra won't start

[devinder8788]

i just bought a 1986 gmc sierra and brought it home parked it in the driveway and now its not starting with out jumping the battery once you jump it it drives fine but as soon as you shut it off its dead and it wont start i test drove the truck and even at the persons house i got it from we must have moved it around at least 4 times it worked fine but now its not starting i went out and bought two brand new batteries that are recommended for my truck for about three days it worked no problem started up on the first shot and now its dead again and wont start unless you jump the batteries how does this keep happening?? i just noticed is my dash lights don't work and my reverse bulbs and brake light bulbs keep being burnt out and i changed them when i got the truck 4 days ago