Can anyone tell me what rims size I can put on my delta without doing any lifting or anything extra? Thanks 78 olds delta 88

 

It's not the wheel size that matters, it's the tire diameter. What look are you after? There are 1000's and 1000's of wheels.

 

Thanks I’m looking for a rally style rim. Something that fits the car. Definitely nothing that’ll take away.

 

The mind reading isn't working. What are you calling a "rally style" wheel? SSII/III wheels like these that were factory-available?

 

Yes pretty much or something that fits my tires are 15x6

but I want to know if I can go 18” or 20” without having to add anything such as spacers or any fabrications done?

 

Your WHEELS are 15x6. We have no idea what your tires are. And again, larger diameter WHEELS will bolt right up. Whether or not the TIRES clear depend on what tires you select. Whether or not you need spacers depends on what wheel offset you select. The mind reading thing still isn't working.