Grinding noise when starting

Do you mean a passing gear cable? Yes, there is that and a cruise control cable.

Thanks a lot.

If I was to swap engines in this truck, what year models would fit and is parts interchangeable with this engine? It is a 4.3.

Thank you.

I repaired my truck. The flywheel was not broken or anything. The torque converter bolts was not even hand tight. Whoever changed the transmission did not tighten the torque converter bolts like they should be. Now there is no noise coming from under vehicle at all. Thanks for your help.

Thanks again for all your help and advice. I recommend you to anyone.

On my truck, the left signal light is blinking real fast. I checked the bulbs they are all working. I changed the rear light circuit board. Everything else works fine. What could be doing this?

The bulb is an 1156. It only operates the signal light.

They work together. Front works but blinks fast also. Passenger side blinks normal. I changed the circuit board and the bulb. Still doing the same thing.

Right signal lights blink real fast. I have changed circuit board, and bulb. Both signal lights on driving side blinks at same time. The passenger side works fine. All other lights work properly but drivers side signal light. What can cause this?