David "Heavy D"   Sparks  -- one of the stars of "Diesel Brothers" -- is going through a divorce ... TMZ has learned. David's wife, Ashley Sparks , beelined it to court Tuesday in Utah and filed to end her marriage to David. The reason for the split is unclear. The divorce filing comes a little over 5 months after David was arrested in October 2025 on a bench warrant that stemmed from an alleged failure to pay fees owed in connection with a lawsuit. Mickey Rourke says there’s a good reason he