Not sure, measure the eye to eye length (in a straight line, not along it's length) of your existing control arms.
I have them in my storage unit and I can get you the length if you want....tell you what, I'll pm you my #
i have some that came from my fabtech 4.5" lift, they have johnny joints and could use a rebuild but for $40 bucks they're yours. Hans (oatmeal) found a rebuild kit for them somewhere to rebuild the joints.
Depends on how long they are. Short arms/no CAD brackets, for 4.5 you will want close to 16.5, no less than 16.375. If you have not already, you can trim the top of your LCA bracket/part of your shock mount for more clearance/travel.