I was just looking into rockwell axles. The 2.5 ton ones look pretty sweet. I was just wondering about a few mods that you would have to do to your vehicle. If anyone else is wondering anything else, post up your questions as well. Here are a few of mine, if you can answer them thats awesome. 1) I heard you need to have an 8" lift to clear the top loader pinion from the oil pan? Is this true? Smaller/larger lift? 2) What do you have to do for steering? Do you have to go full hydro? Can you run a x-over system? Any other thoughts are appreciated. 3) What about brakes? Do you need to go to a larger master cylinder? Hydro boost? 4) D-shafts...I know the driveshafts would need to be extended if you need a big lift but what about the ujoints? Is there a conversion u-joint or..... And yes I know they add *alot* of weight (1500lb or more) and you have to run 20" rims I think. I just think they are awesome and would love to have them under my rig. Thanks for all you thoughts/help.