Need help finding an axle that can handle high hp/torque

[kevcov]

So I have an 84sr5 that I have had laying around for the past few years and I just freed up one of my spare engines that I am planing on putting in it overs the next year. I know what trany I am going to use but I am wondering if anyone knows of any commonly swapped axles that can handle 330+ hp and about 370+ tq. 330hp is what the engine is putting out as of right now and I am sure it will go up alittle more but not much. I know the mk1 celica supra is a normal upgrade but I don't think that can handle that much. I was thinking maybe something out of a pickup or a mustang but i don't know what yet.