I ran 205/75/15 on a 7" with 4.25 bs stock cop rim on the front/back of my 68dart

in the rear a 7" rim 4.5 bs with a 245/60/15 was just right on the fender lip and at the tire bulge and spring when I went A-body 8 3/4 with large brakes..perfect fit in the center of the wheel tub and about max on tire

they A-body 8 3/4 in my 85 truck,now has 12" rims with the same 4.5 bs and is just right on the tire bulge and spring for A-body axle

i looked at the jeep rims also,didnt think it was worth the effort IMHO

they would deff be on the leaf spring



good luck