well - first of all the front diff - as far a i know- is 26 spline - and my 2001 sporty has a 28 spline rear. second- i could have ordered a front diff lock - trackfinder make them too. but i understand that it can have a dangerous effect on the handling when 4wd is engaged

2001 sporty. 4 inch lift+ body lift-front lovlells coils+extended forks. reat tj. monroe shocks. full skid plate, auxilary fan. external oil cooler. maxxis 8060 235/75 R15 tires on american racing wheels. trackfinder rear diff lock.