Problems with a Ford Explored Year1997 Sound Ext

When I was on a strong slope, it occurred to me to leave the march in neutral and then take speed and place the second without giving time to the march. This immediately ocación a sound like piñon or gear.
What happens now that when I take speed and take my foot from the accelerator it sounds like when I put the march on descent.
I have no problems with the box because it works well is only when I take away my power.

You can have taken slack in the drag of the tree and when it traccal, it does not sound but if you loosen, almost the teeth between pinions, it happened to me with a Peugeot, pass, it is not that nothing happens, only that the pinions are already touched .. Na

Hello Czech the bolt that goes the satellite box possibly is broken. Check the arrow cross. (The satellite box is in the differential)