well lads, quick question.......

I was told by the old owner on my car that as far as he knows the diff is standard... its silent in action the odd wheel skip when turning very tight but nothing much!!

Was wondering though if i come out of a junction and turning under power it pulls away fine then you can feel it tighten up and the diff seems to lock....

would this sound like maybe a 1.5 way even?? more so than a standard helical diff??