Silverado 3500 4WD V8-6.0L (2007)
15. Ensure that the junction block retainers are in the open position (1).
16. Position and align the junction block to the 4 bracket pivots (2), once the pivots are engaged, push the retainers down into the locked position (3).
17. Install the underhood junction block cover.
18. Connect the auxiliary battery negative cable.