I have a 1980 cj7, narrow track, putting a 2.5" bds lift on it, keeping my stock rims, and putting 33x12.5 duratrac tires on it. I am concerned about rubbing, backspacing, flex, and clearance. I don't plan to offroad a lot but I want to trailrun and flex some. I am thinking I may need to put spacers on, and maybe add a 1" body lift. Any thoughts? And pics of rigs with similar setup?
I have a 81 NT with a SOA and was running 33x12.50 on 8 inch rims. The standard 8 inch rim is 3.75 to 4.0 inch back space with the 12.50's they will rub and turning radius will be affected. The rears even had 1.25 inch spacers and still rubbed, just less than without them. I went with 10 inch rims and a 3.5 back space and no more issues got my turning radius back too.
First photo is 8 inch rims 4.0" b/s no spacers.
2nd photo same rims with 1.25" spacers (rear only)
3rd 10 inch rims 3.5" b/s no spacers
1981 Jeep CJ7 4.0 HO, AX-15, D300, D30, D44, SOA
1977 Chevrolet C/10 step side 454 TH400 3.73 posi
I have 12.5x35's on 10 inch rims, and they rub the back of front springs, in full steering lock. But I also have 2.5 inch springs all the way around. Also in full flex back tires are really close to rubbing the frame. Narrow track axles suck . But will have to work for now, in my case. I'm going to different rims or just wheel spacers, until I can upgrade to full width 3/4 tons.