Justice R
Adventurer
Get the front from the LS, and the rear locked from the sr. The fronts are the same.
1999 Montero. Locked.
An LS with the 3.0 engine will have a smaller diff in both the front and rear. Not a suitable donor for the 99. Get all parts from a 3.5 equipped SR (94-96) 92-93's all had smaller diffs in the front as well except the manual transmission which is rare to see.