I found this pic of an IRS 8.8 rear end and was wondering if the flanges for the halfshafts(stubshafts?) I circled are a OEM Ford parts or do you think this is aftermarket?? Ford Tbird 8.8 w/ halfshaft flanges(stubshafts?) I'm asking because I picked up an 8.8 IRS diff(pretty sure its a 28 spline) for dirt cheap from a 95 T-bird, but it doesn't have those halfshaft flanges on it, the halfshafts spline right into the diff housing/side gears. those flanges(in the first pic) are key since we are trying to adapt this Ford 8.8 rear end to work with IS300/Supra halfshafts which use a flange style "mating" to the diff and don't spline directly into the diff. stock IS300 diff w/IS300 shafts(the halfshafts are bolted to the diff through a flange) anyone have a clue??