I have the 3.42 gears in my truck now, front AND rear obviously.... I know that the '97 Blazer comes with 4 diff gear ratios, ONE of them being a 4.10 ratio! Ah ha! Just what I need/want!
Here's a list of the gear ratio's available and their associated RPO code:
GT4 Rear Axle: 3.73 Ratio
GT5 Rear Axle: 4.10 Ratio
GU4 Rear Axle: 3.08 Ratio
GU6 Rear Axle: 3.42 Ratio
Question is... can I call around to diff junk yards and salvage yards and find those stock 4.10 gears and use them in the SAME differential (front and back) of my truck? Which, again... is holding the 3.42's/GU6 currently! I'm guessing the differentials are identical on ALL the diff gear ratios, so it should just "bolt" right in correct?
If I'm wrong....
where can I find the replacement 4.10 gears for front and rear online? Can't seem to find them anywhere! Though I HOPE HOPE HOPE I can use the stock ones, because I'm sure it'll put a lesser of a dent in my pocket!!!