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Pontiac 20 slots, what is the offset?

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    Pontiac 20 slots, what is the offset?

    I've seen several people run trans am wheels in different models and I decided that was the route I wanted to take. I found a set of 16x8 20 slot Pontiac wheels for pretty cheap and now I need to figure out how to mount them. I've looked everywhere and can't seem to find the exact offset. I'd like to know what size adapters others have used for these wheels. I know the bolt pattern is 5x120.7 but as to thickness of adapter I'm not sure. So I can avoid taking my studs off for the time being can anyone tell me a good adapter size to go with?

    #2
    Did you check out thirdgen.org for any info?

    1992 BMW 325iC
    1978 Chevrolet Monte Carlo
    1965 Chevrolet Corvair Monza 140hp

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      #3
      I used their offset chart and measured the backspace. 20 slots run et19

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