[Ski-me]

I believe the spring perches are the same on the 1/2 tons. If you get up to 1 tons, they may be different. You also need to verify the u-joint is the same, as well as the shock mounts.

As an FYI, I put a "same era" 8-lug SF axle under my 1/2 Blazer. Bolted right up and I was also able to use the e-brake on the new axle. I did have to upgrade my u-joint though. There is usually a conversion u-joint if needed.

If you were closer I'd have a 3.73 axle for you.....