basically my 98 spec glanza has an OEM LSD which the casing has broken, i sourced a box which has the same dimensions but ive got a feeling its a GT box as it varies slightly ? i dont want to strip mine down to find this other box will not fit. also has anyone got any tips for removing the nut which holds 5th gear in. im hoping to gather enough info/pics to do a little tutorial once i have sorted my box out. thanks in advance. alex