I've been on phr's web site and seen they do an uprated oil pump but what screw mod are you refering to dude? also if the engine needs this kind of work then i'm going to upgrade some parts! there was the hypertune plenum,power steering relocation and the breather kit was also considerd!
the work on the seal will be done by me and a friend ( he's a mechanic and i'm a diesel fitter) but the horror story's keep putting me of doing just the seal. The other problem is that i can't find proof of the crank, valve springs,prop,drive shafts or diff being uprated so the power can't be lifted until i change the lot so that i know that it'll take the power hike!