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Kurt,
Caprice 9C1 is narrower, but 94-96 Caprices with B4U--and there are many--have the same axle width as the Impala SS.
Posts by Navy Lifer
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Caprice 9C1 is narrower, but 94-96 Caprices with B4U--and there are many--have the same axle width as the Impala SS.
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If you KNOW that you have the narrow rear axle in your vehicle, the difference PER SIDE between it and an Impala SS is 16mm = 5/8".
To achieve the Impala SS "look" would only require a 5/8" spacer/adapter, but, as already discussed, the absolute minimum for an adapter is 1" (ONE inch), which is 3/8" more than is needed to make the car look like an SS as far as rear wheel position to the body opening.
A 5/8" spacer (as opposed to an adapter) is not a recommended approach.
A 1.25" adapter is another 1/4" thicker than the preferred 1" adapter, and twice the amount needed--and would push the wheel out quite far--too far, IMO.
To achieve the Impala SS "look" would only require a 5/8" spacer/adapter, but, as already discussed, the absolute minimum for an adapter is 1" (ONE inch), which is 3/8" more than is needed to make the car look like an SS as far as rear wheel position to the body opening.
A 5/8" spacer (as opposed to an adapter) is not a recommended approach.
A 1.25" adapter is another 1/4" thicker than the preferred 1" adapter, and twice the amount needed--and would push the wheel out quite far--too far, IMO.
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There are several variations, but a picture would help to ID the specific wheel, and if they're OE wheels, the back data is also going to help.
Offset is the important key piece of information needed. If the wheels you're talking about are Z06 fronts, they're +40mm, but everything else in that size was more like +56/57mm, I recall.
The spacer/adapter for a +40mm wheel at 9.5" will be in the 30-40mm range, and if it's +56mm, the thickness will need to be in the 50mm range, depending on where you want to place the wheel laterally--with a wagon, there may be a more restrictive spacer range for the rear, depending on tire size.
As for tire size, the 9.5" bead width calls for a 265 or greater tire section width. Trying to stretch the 245 tire on the 9.5" wheel is not a good plan--for the tire or the wheel. Not sure about load rating, but pulling the sidewalls in is also going to leave the wheel very vulnerable to curb damage.
I've got some 275/45-18 Continental tires that are old but "new" (never have been on the road)--I'd like to make them yours, if you may be interested.
Offset is the important key piece of information needed. If the wheels you're talking about are Z06 fronts, they're +40mm, but everything else in that size was more like +56/57mm, I recall.
The spacer/adapter for a +40mm wheel at 9.5" will be in the 30-40mm range, and if it's +56mm, the thickness will need to be in the 50mm range, depending on where you want to place the wheel laterally--with a wagon, there may be a more restrictive spacer range for the rear, depending on tire size.
As for tire size, the 9.5" bead width calls for a 265 or greater tire section width. Trying to stretch the 245 tire on the 9.5" wheel is not a good plan--for the tire or the wheel. Not sure about load rating, but pulling the sidewalls in is also going to leave the wheel very vulnerable to curb damage.
I've got some 275/45-18 Continental tires that are old but "new" (never have been on the road)--I'd like to make them yours, if you may be interested.
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