Thanks bud I owe you a beer!
Took the colum cover off and that o/d wire coming out of the gear shift(auto)
had been rubbing after years of Park to Drive and sure enough 1 wire out of three had no insulation on it at the 90 degree bend.
That wire was a direct short and causing the fuse to blow, and that explains why it was so intermittent. The wire had to be in the right place to short, thank god it was in the right place to get me home from the coast last weekend!
Thanks buddy! Now time to