my original tranny got 400k kilometers. i rebuilt it and the shifting doesn't seem as firm as my original with the sonnax/tricumulator mod. should i look at doing the mod in this tranny or would a vb from bts be a better solution? Thankx to all that reply. i think i am running close to 400 hp and do a little towing, the tranny re-builder said the model year 2000 had great innards but lacked a little with the third gear clutch pack. he replaced this with some sort of borg/warner setup and installed a triple disc billet converter and then rebuilt the rest. tranny is six months old and seems to work fine just shifts are a little soft. Thankx again for reading my long winded typing.....