Following the SKOSH chart - your experiences?
If you haven't already maxed out the adjustment on the lower fender to bumper brace you can do that. On my car with my 275/35/18's I reshaped the corner (cut it off) and then extended the fender to bumper brace by a bit under 2". That pushes the lower corner out and away from the interference. It's actually not a super obvious modification, I stopped pushing right about where the fender started resisting the change and bowing out a little. If you sit it next to a stock car the difference in noticeable, but without a stock comparison it's fairly subtle.
This shows the brace and the corner modification
Length change on the brace
As for the rest, I run -1° of camber, +6.5° of caster, and about 1/16" toe in with 275/35/18's up front and a 16:1 manual steering box. I do see a little bit of camber wear on the inside edges of my tires. It's not so severe that it will scrap my tires before they need to be replaced for overall wear though. The steering effort on my car is fine IMHO at any speed over about 15-20mph. It is not a fun car to parallel park, but it is my daily driver with those specs. I have run everything from +5° to +8° of caster on it, I think +6.5° is pretty close to where I want it. More than that and the steering gets infinitely more difficult with even small increases in caster, less than that and I start to notice the tendency of those wide 275's to seek out ruts and low spots in the lanes. At around +6° caster the steering starts becoming a lot more stable, the car runs a nice straight line without any input. But that has a lot to do with the 275's up front, with narrower tires I think the happy medium for the caster would be lower.
With -1.5° camber you will definitely see camber wear on the tires unless you're always cornering with some lateral force. Between my Duster and my Challenger I've found that around -1° is where the camber wear starts to happen, below that it's not an issue at all, above that it becomes increasing more obvious. It will depend on your driving style and the use of the car, but for me anyway at -1.5° the tires would probably have to be replaced because of camber wear alone before the overall wear required their replacement.
If you haven't already maxed out the adjustment on the lower fender to bumper brace you can do that. On my car with my 275/35/18's I reshaped the corner (cut it off) and then extended the fender to bumper brace by a bit under 2". That pushes the lower corner out and away from the interference. It's actually not a super obvious modification, I stopped pushing right about where the fender started resisting the change and bowing out a little. If you sit it next to a stock car the difference in noticeable, but without a stock comparison it's fairly subtle.
This shows the brace and the corner modification
Length change on the brace
As for the rest, I run -1° of camber, +6.5° of caster, and about 1/16" toe in with 275/35/18's up front and a 16:1 manual steering box. I do see a little bit of camber wear on the inside edges of my tires. It's not so severe that it will scrap my tires before they need to be replaced for overall wear though. The steering effort on my car is fine IMHO at any speed over about 15-20mph. It is not a fun car to parallel park, but it is my daily driver with those specs. I have run everything from +5° to +8° of caster on it, I think +6.5° is pretty close to where I want it. More than that and the steering gets infinitely more difficult with even small increases in caster, less than that and I start to notice the tendency of those wide 275's to seek out ruts and low spots in the lanes. At around +6° caster the steering starts becoming a lot more stable, the car runs a nice straight line without any input. But that has a lot to do with the 275's up front, with narrower tires I think the happy medium for the caster would be lower.
With -1.5° camber you will definitely see camber wear on the tires unless you're always cornering with some lateral force. Between my Duster and my Challenger I've found that around -1° is where the camber wear starts to happen, below that it's not an issue at all, above that it becomes increasing more obvious. It will depend on your driving style and the use of the car, but for me anyway at -1.5° the tires would probably have to be replaced because of camber wear alone before the overall wear required their replacement.