Savage 25 Diff problem (guessing)

[Markjarvis3]

Brought a truck just for parts really but then thought I'd try and get it running, all moved fine across floor before hand, started it up today and wheels simply would not turn under acceleration, breaks are not on either, so stopped the engine then realised that the rear wheels cannot be turnt one at a time as they should so presuming the diff is knackered? Or just wondered what else could cause that if anything?

 

[Markjarvis3]

Sorted it! The bloke that had it before must of had the casings apart underneath and put the screws in the wrong places! Believe it or not it was just a screw in the wrong place that was too long and going down onto the diff making it not move, I see a couple of loose screws this morning before trying to run it so I tightened them up which obviously caused it to tighten all up