hi, i have a 99 ranger xlt 4x4... i had the clutch, master cylinder and slave cylinder replaced about a year ago and then had the engine replaced about 9 months ago... at the moment the truck makes a loud clunk sound when shifting gears, and every once in a while (usually during take off) the truck will jolt and seize to drive for a moment, then with another attempt will start rolling again... does anyone have any insight for me??