I have an 89' FJ62 with 180K miles. There is a ticking sound that just started, I can hear it when the truck starts to move in "D". The tick speeds up as the engine RPM's go up. I do not hear it when sitting in neutral or stopped in "D". It sounds like it is coming from below the transmission shifter. The transmission fluid is in good condition and I have not been getting any transmission temp warning lamps etc. Any suggestions would be greatly appreciated!