[sierra4x4]

I think the 10 bolt would be just fine with 35's but it boarderline. I have 36's with a 10 bolt front along with a mild 427 and have seen no problems with it as long as you use good axle joints. you could find a SF14 for the rear it would be a nice upgade from a 12 bolt. The SF14 uses a larger u-joint and is avalible in both 6 and 8 lug axles.