I am building a 5.3L LSX Turbo as we speak. The truck is going to be making around 400-450whp and 450-500 wtq. I need to know what rear end you guys would run in it?

 

Dana 60 is what the srt 10 rams use, so that should handle the power w/ no problem.

 

My 2 cents. The Dana 60 is way overkill. They are hard to come by at most junk yards for on the fly replacement parts.

Dana 36 would handle the power, but the diff is super weak and not worth the headaches.

On the other hand, a Dana 44 is very popular and plenty in the junk yards if you break down. Only down fall is the week outer stub of the axle. Aftermarket on this axle is not limited one bit. I see no reason why the Dana 44 couldn't handle the HP, they have a pretty solid diff. Also the 44 weights a lot less.

With an automatic, and a D44 upgrade, you'll probably be fine. It's not the power that breaks the parts, it's the sudden hit of a clutch drop.

 

I guess a D44 would give you a wider aftermarket parts range, but I've read that the 9.25" Chrysler is of comparable strength.

If you truck has the 8.25" though, I'd imagine it is not as capable.

 

I would also suggest a dana 44.

 

9.25 with spool or locker true trac

 

A 9" ford rear end would handle that power easily and have tons of aftermarket. Gm 10 or 12 bolt would work too.

 

The 9.25 is fine. And considering a D44 is weaker than a 31 spline Ford 8.8 (Which in some aspects is near D60 strength), I'm betting it's also weaker than a 9.25.

 

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The 9.25 is VERY close to a dana 60, my understanding is that the axles are simply tapered.

I run it behind my hemi, and have had no issues yet...thats not to say I wont

Pick up one of these
http://www.ratechmfg.com/chryslerspbs.htm
and one of these
http://www.summitracing.com/search/B...ysler-9-25-in/

and you will be good to go.

I know of several people that have run 600+ on 9.25's for quite a while without issue. As long as you replace the crush sleeve with one of those dummies I linked.