The bare bones of the story is the 4X4 blew up in the manner described. I've taken the liberty.....
Would you like to embellish something you've read or heard? Or perhaps just change an ending. Here goes:

These two brothers went ice fishing in their brand new Chevy blazer. It was yellow, a $28,000 dream come true. They had there wonderful golden retriever, Elvis, with them.   They pulled up to the edge of the lake and had a thermos of coffee & were excited about the great day of fishing ahead. The ice on the lake was very thick, so they'd taken a stick of dynamite with them to help make a hole. They walked, with Elvis by their side,
about a hundred feet, Billy Bob lit the dynamite fuse And threw it toward the center of the lake. Elvis, seeing this, took off a fast as he could to retrieve the "Thing" his master had thrown. John Henry, having taken his rifle with him, fired a shot at the dog to scare him into retreating. The dog now had the dynamite stick with long fuse in his mouth, and when John Henry shot at him his confusion led him to seek shelter. He made a mad dash and slid under the brand new Blazer. The two brothers, by now so confused at the turn of events started calling Elvis,Elvis, Come here boy.
Elvis, being the obediant dog that he was,dropped the dynamite stick under the 4 X 4 and came runing to the brothers who were standing in amazement & praying out loud, "oh, please Lord"------At that moment the dynamite was ignited and their beautiful Yellow chevy 4 x 4, with genuine Corinthian leather seats, and all electric extras, and their collection of Hank Williams & Tammy Wynette CDS & their lil ole sleepy, snoring Grandma ( who loved to be with "her" boys) went sky high over the lake shore. Pieces of yellow & Corinthian leather & gingham plaid were spread all over the Great Smokie Mountains.

The insurance Co. would not cover the loss, claiming that such monumental stupidity should not be rewarded. So Dear friends the boys were on the hook for $248.00 each & every month for the next 4 years. That night the dog ran away to the city. Wanted no more country life, he's content with the little old lady who took him in. When she drops her knitting wool he does not retrieve it. He's made a vow to himself-no, nay, never will I EVER retrieve anything again.

And then there was the funeral. They found granny's hearing aid--that was all
that was left of the poor old soul. That,
and a few gingham slivers of cloth. They put the remnants in coffee can & burried it under the front porch.

The trial starts next week, Murder in the first. It seems ole granny had an insurance policy which benefited "her" boys. Not a lot of money, but enough to have made two country boys mighty happy. That's what people are thinking.

So Billy Bob & John Henry are in the Cherokee County jail. No one comes to see them, everybody thinks these two country boys planned this whole thing.

All they wanted was a few trout for
Sunday dinner.    Life's a bitch.