Well long story short , i snapped the output shaft in half, had the transmission rebuilt by a reputable shop (bench job) and i removed/installed myself. Installed a Hardened output shaft .

have it all back together and of course abs and brake light came on and no 1-2 shifting and no speedometer.pulled codes said front left wheel speed sensor ,and rear wheel speed sensor.
replaced ,both sensors ,cleared codes , abs and brake came back on,checked codes and now its only showing c0055 rear wheel speed sensor curcuit malfunction. i replaced the sensor again but no go and speedometer is always dead.

i have checked grounds and all seam fine. Could i have shorted my PCM? any test suggestions are appreciated .

Truck is 06 silverado 1500 2wd crew cab 4.8 Thank in advance guys