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Jeep Wrangler YJ
YJ General Discussion
Advice on a 4.5" Rough Country Lift?
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<blockquote data-quote="machoheadgames" data-source="post: 435617" data-attributes="member: 18789"><p>I would highly recommend against the RC 4.5”. The reason it’s so affordable is due to the big compromises that it’s made up of. 3” springs and a giant 1.5” shackle lift. My buddy got a used RC 4.5 kit and the long shackles they give you made his steering caster go from 7° down to -1°. That will make handling absolutely abysmal. Go with a real lift like rubicon express and plan on adding a 1.25” body lift. </p><p></p><p>The stress of 35’s on the driveline combined with the poor angles of a lift makes the SYE a very good idea. I’ve seen it countless times where the driveshaft rips out of the transfer case after a while on the stock design due to the lift and heavy stressful tires. </p><p></p><p>17’s don’t have many width options. Usually 8.5” or 9”. I’d go 8 or 8.5” if possible. The problem is on 35’s no matter how you run them they are going to want to turn into the leaf springs on tight turns so you’ll need to limit the steering stops for them regardless. Either way, I don’t have a rec for a good 17. I’d love to go 17’s for the good tire options but I can’t find a good 17” rim that makes it worth going to. </p><p></p><p>Backspacing comes back to rim selection. You don’t get to choose much. Somewhere around 4” on an 8” wide rim would be good but you really don’t have many options. Many 17’s are more like 4.5-5” of BS and the YJ springs don’t have clearance for that on such a large tire. So try to find something 17x8 on 4” if you can and still plan on limiting the steering stops. </p><p></p><p>Since you have a renegade it’s going to be harder than usual to clear large tires. You can yank the flares for something else but you will see a ton of holes in the body when you pull those off (the Renegade contractor installed them with a bunch of fasteners). So I don’t really have a recommendation for you there but something like 6” wide would cover 35’s decently unless you went with small backspacing and wide rims like 9 inchers.</p><p></p><p>At the end of the day I don’t really recommend slapping on 35’s as a look at all. The 5 questions barely even scratch the surface of what I consider proper to run 35’s. Brakes, steering and gearing are all drastically effected in a bad way when going to 35’s.</p></blockquote><p></p>
[QUOTE="machoheadgames, post: 435617, member: 18789"] I would highly recommend against the RC 4.5”. The reason it’s so affordable is due to the big compromises that it’s made up of. 3” springs and a giant 1.5” shackle lift. My buddy got a used RC 4.5 kit and the long shackles they give you made his steering caster go from 7° down to -1°. That will make handling absolutely abysmal. Go with a real lift like rubicon express and plan on adding a 1.25” body lift. The stress of 35’s on the driveline combined with the poor angles of a lift makes the SYE a very good idea. I’ve seen it countless times where the driveshaft rips out of the transfer case after a while on the stock design due to the lift and heavy stressful tires. 17’s don’t have many width options. Usually 8.5” or 9”. I’d go 8 or 8.5” if possible. The problem is on 35’s no matter how you run them they are going to want to turn into the leaf springs on tight turns so you’ll need to limit the steering stops for them regardless. Either way, I don’t have a rec for a good 17. I’d love to go 17’s for the good tire options but I can’t find a good 17” rim that makes it worth going to. Backspacing comes back to rim selection. You don’t get to choose much. Somewhere around 4” on an 8” wide rim would be good but you really don’t have many options. Many 17’s are more like 4.5-5” of BS and the YJ springs don’t have clearance for that on such a large tire. So try to find something 17x8 on 4” if you can and still plan on limiting the steering stops. Since you have a renegade it’s going to be harder than usual to clear large tires. You can yank the flares for something else but you will see a ton of holes in the body when you pull those off (the Renegade contractor installed them with a bunch of fasteners). So I don’t really have a recommendation for you there but something like 6” wide would cover 35’s decently unless you went with small backspacing and wide rims like 9 inchers. At the end of the day I don’t really recommend slapping on 35’s as a look at all. The 5 questions barely even scratch the surface of what I consider proper to run 35’s. Brakes, steering and gearing are all drastically effected in a bad way when going to 35’s. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Advice on a 4.5" Rough Country Lift?
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