I see your point, but the 15 will take 300-350 hp even with a limited slip and decent traction. Been there, done that -- in a light car like a Gremlin or American (the one I know of was an American, and Mark Price on here is running one). Real slicks and traction control will tax it (with 350 hp), but it will hold up pretty well for a long time. For a race or street/strip car something heavier is definitely needed, but for most street performance cars it's not. There is a huge weight penalty paid for an AMC 20 or Ford 8.8/9". That weight affects ride, handling, and performance. Unless you're planning on running it real hard all the time it's not worth changing. The 15 will take some abuse, but not a regular pounding. I've never broke one, and I have run cars with 15s pretty hard. ------------------ Date: Fri, 22 Feb 2008 20:20:13 -0800 (PST) From: Davis Martin <martin-davis@xxxxxxxxxxxxx> Ok almost any rear will stand up to 300 HP or more if it a peg leg non posi with 0 traction. But what is the fun in that? One wheel peel is not most people's idea of performance. I would say that the same rear with stickies might not last the 2nd burnout. Davis -- Frank Swygert Publisher, "American Motors Cars" Magazine (AMC) For all AMC enthusiasts http://farna.home.att.net/AMC.html (free download available!) _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list