yo........ i'm building another 4agte monster, and so need to upgrade the box. i have got a niteparts bellhouseing on the way, but i'm wondering whats the go with the fitting of the gze fly wheel as i have heard they "fit no trouble", and also that they "don't and you need to either grind some metal away from the inside of the housing or just get the 4age fly as its smaller". i've got a hd clutch already and don't want to change it if not neccesary.

also wondering about the w57/w58. which one do you get and what other parts are required for fitting, as i have the bell, and have a jdm disc to disc rear end..........?