Wmrudd

HAVE ENJOYED MY LAST EDITION 1995 E300, JUST GOT IT BACK REPLACING THE WIRING HARNESS AND HAVING THE HEAD GASKET REPLACED AND HEAD REFINISHED! NOW SEEMS TO BE SHIFTING HARD AND KNOCKING NOISE GOING THROUGH SHIFTING OFF THE LINE! I MANUALLY SHIFT OFF THE LINE INTO GEARS BECAUSE HILLY WHERE I AM LOCATED IN AUSTIN TEXAS! CHECKED OIL AND ITS NOT BURN'T AND IS CLEAN AND NOT SLIPPING INTO GEARS, JUST REAL HARD SHIFTING! ANYONE OUT THERE TO KNOW WHAT THAT COULD BE? I KNOW THEY TEND TO SHIFT HARD BUT CONCERNED MAYBE TORK CONVERTER? THANKS