jpcdmd

I have a set of new 20" chrome Auto Couture Supremes 3-piece, with the rears being 20x9.5 with a 43 offset. I want to make the rims a 10" width by replacing the outer rim, giving me 1/2" more lip. I'll assume a 275/30-20 tire. If my calculations are correct, this will change the offset to 39.875, no?

So the wheel will be 20x10 with 39.875 offset - will this fit with zero issues? The inner will clear, but will the outer hit the fender? Can I even get new outers that are wider? Whats the minimum offset required for a 10" width wheel for the rear, for no clearance issues?

Car is a 2001 LS430 UL, not lowered.

rominl

iTrader: (4)

i think the offset will be around 37.

i am not 100%, dunno about LS fitment, but that's pretty aggressive. i have a feeling that it might rub

but first of all, you have a good wheel shop to do that for you? that's not something trivial to do

DXC

We tried as well, in Japan, LS430 can go up to x10.5, in the US, unfortunately x9.5 (99% of the case), so I will say good luck

jpcdmd

To figure the new offset, I subtracted 1/4" from the 43mm offfset, figuring the 1/2" increase in rim width is added to the outer side of the mounting surface, thus moving the center of the rim only 1/4" towards the mounting surface. Hence 43mm - 3.175 = 39.875mm

I don't have a wheel shop, but havent looked around. I was just curious if anyone knew if it would fit. If it doesn't, I'm not going to bother.

D2-AUTOSPORT

I think the most important factor would be attaining the replacement lips. I have personally found that many companies will not sell just lips (even Lowenhart, Maya, etc).

jpcdmd

yeah I didnt think about that....the guy I bought the rims from had a few extra outers and asked if I was interested but I declined, so I thought they were readily available. But maybe not.

D2-AUTOSPORT

I know a dealer that damaged his lips on some Lowenhart wheels and could not buy replacement outers.

I think they do this to prevent people from purchasing non staggered wheels and then just getting new barrels to stagger them. (in addition to obvious liability reasons)

Good luck with the project

DXC

D, you are absolutely right, we shall make your comment as an official post to notice all luxury wheel owners. When buying these wheels, make sure to buy from a reputable company which has some tracking record

rominl

iTrader: (4)

umm that's very interesting. why would the two ls be different? i don't see the point? of the ones in japan (10.5) are just aggressive offset?

rominl

iTrader: (4)

umm... 1/4" is about 6mm. 1 inch is 25mm

DXC

The "Magic" of Air Suspension

rominl

iTrader: (4)

so that's just pure negative camber in the work. it's ok dxc, you can fit 10.5 as well. just turn the negative camber **** all the way to most negative and you are fine

jpcdmd

rominl, you're right, I don't know what I was thinking, I computed 1/8" instead of 1/4" during the conversion to metric. So it would be 37mm - yeah thats pretty aggressive.

rominl

iTrader: (4)

no problem, this stuff is always confusing