Greetings.....you seem to be expert on the Isuzu gears. I've got some pre 98 isuzu dana 44 4.30 gears trying to swap into a '91 wagoneer with 3.73 and down carriers. My shop has my axles apart and are saying it won't work. They have talked with Stacy @Randy's R&P and say the bearings Stacy says will work won't work without "modifications". Do you have any input on this? Any help would be much appreciated! Dan