I recently found out I have 3.42 gears (code GU6) in my 1990 V1500 Suburban. I need to change out the axle assembly because so many parts from the old assembly were damaged.
My question is what years can I swap out the old assembly for a new one? I mean, GM had to be using more or less that same axle assembly set up until maybe 2000 or something. It seems like the year shouldn't really matter much, just the gears.