And the front disks are also different. By about 2mm of offset. I spaced out my mistake using 8 washers on each side, after firstly getting a new disk gouged out due to lack of clearance. For everybody else, order your new '99 front end parts carefully.

 

Thank you SO much - mine is 4x4. Really appreciate your time - I joined this forum to specifically ask this question and am grateful for your detailed answer.