I was hoping you would jump in with some info Steve! what are you currently running for steering? I have 17x9 2.5 BS wheels on my rig right now, so they will work just fine
I just bought an FZJ80 FF Rear Axle to put under my Runner, and I am debating about putting in an FZJ80 front or an FJ62 front. The best of both worlds might be the 62 center and the 80 knuckle balls. I got a 62 housing for $75 so I might start by getting it turned and widened to 63" and use my current hi steer arms. I've been batting around the idea of using 100 series rear thirds and getting custom made 32 spline inner axle shafts that have the wider OD. Those thirds now have 4.88 R&Ps available. For me, the regular 30 spline inners with the standard OD should be strong enough. Steve do you have 80 series Longs? Are they 24 spline between the birf and inner axle? Love to see what Billybob13 is working on and I hope it's a good option for leaf sprung and non-full-hydro vehicles.
For the rear, I have tested 15" black rock crawlers over the calipers, and some grinding will be necessary. I like the idea of getting the big drotors for better stopping and better e-brake options. The FF axles will be nice for strength and ease of repairs.