So to start I was driving down the road and the whole truck died completely and coasted to the shoulder. I could get the motor to turn but never fire. I checked for fuel and it was getting fuel so i changed the ignition coil and distributor cap and rotor because the cap was busted but noticed there was plastic chunks under the rotor in the distributor. After a while of trying to start the starter busted to pieces and started grinding so i replaced the starter. now when i try to turn it over with the new starter it will turn some but then push the starter out of place so i have to loosen it and straighten it then tighten it back and then it will turn some more without fire but will push the starter out of place a little and start grinding on the fly wheel after the motor turns some. also when it turns it will back fire and blow smoke out of the intake and smoke from the distributor. I have spent so much time on this truck and we cant figure this issue out but its really bothering me. any help would be great.