Trim the cross member and re plate, I did mine and gained a bunch of room. Lift depends on tire size and fender trimming or not. If you can move the axle forward some. You can get a lot of fender well room by trimming vertically but these have more issue rubbing the firewall area at full bump. I ran 35 15.50s super swampers with full cut out flares, 3 body, 6 inch suspension. 3 1/2 inch duff coils and a 3 inch spacer on the axle. B2 same front end and frame. Full compression got into the fire wall so I had to smooth it out a good bit. On my Ranger I Currently run 35 bfg muds no spacer and 4 inch (no name used coils) and 3 body same amount of trimming and identical lengthened ford radius arms and a little more fender cutout. Axle is pushed forward about 2 inches; but i'm running full hydro now, with no rubbing. These coils bring the suck and doesn't flex well. Both ran the same Classic Bronco width 44-nine combo with 2 inch wheel spacers and offset wheels. Full width will help some but still get into the firewall. The old pin strip line makes a great place to trim from to get a feel for how far you can go without ruining the look, mine has no inner fender and has been narrowed 15 inches in the front. Vertically I could clear maybe 38's but they would never turn or clear the fire wall.
32 x 11.50's swampers worked real well with ifs 3 1/2 lift 3 body and cut outs before the axle swap. These trucks need a ton of lift to clear tires due to the fender well shape. Hope the info helps. A friend ran 6 inch suspension 3 inch body to clear 33 thornbirds way back in the day (he really hated those tires
) on his Ranger.
