sounds just like my clutch, it slipped a little when you abused it, came around the corner into my street one day. dropped it into 2nd, popped the clutch and revved it expecting to hang it out sideways and all i got was lots of revs, thinking i'd missed the gear i tried again, more revs. anyway i had just enough bite left in the clutch to get it up the drive way. when i dropped the box out i found the clutch pressure plate spring had cracked right accross between 2 of the release fingers. drop the box and see, either way that box has gotta come outa the car anywas. drain the oil outa the box too and see if there are any bit of gear teeth in it. when you cnage the gearbox oil it also pays to do the diff oil as well, everybody seems to forget about this but as you have a welded diff i suggest you fix this whilst your at it also:bang: