You can not put 8.8 parts in a 7.5 rear end, except for the 28 spline axles and axle bearings. If anybody tells you different then they don't know what they are talking about.
Your '96 rear end should bolt right into your '98, but I think it will be slightly narrower. This shouldn't be a problem unless you are using very wide tires and are already close on the inside. I can't remember if it was '98 or '99 when they went to the wider rear end.
Your '96 rear end should bolt right into your '98, but I think it will be slightly narrower. This shouldn't be a problem unless you are using very wide tires and are already close on the inside. I can't remember if it was '98 or '99 when they went to the wider rear end.
