20" fitment on 70 chevelle

[ness01]

I am looking to purchase a new wheel tire setup for a 70 chevelle. here are the specs...

Rear: 20" x 10" - With tire (305/35/20), the overall diameter/height is going to be about 28.4"

Front: 20" x 8.5" - With tire (245/40/20), the overall diameter/height is going to be about 27.7"

Can anyone tell me if can tell right away if this fitment will actually fit a 70 chevelle with stock suspension settings? spacers?

Thanks

[JayR]

Should fit fine if you get backspacing just right but if you don't lower it, she'll look like a Jr Donk with 20s all the way around. I would suggest dropping it a few inches and putting 19s up front.

[DHARROD]

Here are some sources that helped me .. my guess is you'll be nearing a 6" backspace... 5-3/4 may work
Front .. 4-7/8 or 4-3/4 (talk to your rim mfg of choice).

https://www.rsracing.com/tech-wheel.html
http://www.wheelvintiques.com/pdfs/wheel_fitment.pdf
http://www.chevellestuff.com/tech/wheel_offset.htm
http://www.chevelles.com/forums/show...ce+measurement

[Blown353]

The back should be OK in width and height... tire width is getting tight at a 305 so make sure your backspace measurements are correct. Tire height may be a problem if you lower it... That's a pretty tall tire and it might rub at the top of the wheelhouse.

In front, I don't see a problem with width or height... at stock ride height. However, those front tires are quite tall so if you lower it I would expect to have the tire rub at the peak of the fender and also the front lower edge of the fender.

[DriverzInc]

That rear will be okay, but yes, the front is a little tall. Might consider going to a 19x8 front, like JayR suggested.

We have the perfect fitment for that car, just give us a call and we can talk about it, or PM. Backspace is key when fitting tall, and wide tires under these cars. We can help!

[ness01]

Originally Posted by DriverzInc

That rear will be okay, but yes, the front is a little tall. Might consider going to a 19x8 front, like JayR suggested.

We have the perfect fitment for that car, just give us a call and we can talk about it, or PM. Backspace is key when fitting tall, and wide tires under these cars. We can help!

How about if I were to decrease the front tire profile to 245/35ZR20 (overall diameter of 26.69 = 1 inch decrease)? What do you think?