Looking for Help with Tires

[H35]

I have a 66' Chevelle rag top and I just ordered a set of 18"/20" wheels. Now I need to find out which tire I can use in the rear that has the largest side wall.
The wheels are 20" x 10" and the car has Eibach lowering springs. I was thinking 275/35/20, can anyone post some pics of what they are using?

Thanks
Rob

[66SuperSport]

If you want to be able to bury the tires up in the wheel wells you will not want to go any wider than a 275. I know there are a few guys on here running wider tires, but not on 20s. I have 275/40/18s on the back of our '66 and they never rub. 18" x 10" with 5.5 bs. Original 12 bolt with SSBC disc brakes. No body or wheel well mods. Not sure who offers the tallest tire for a 20" wheel, but watch the front of your wheel openings for quarter panel/tire clearance. If you get too tall of a tire you may see clearance problems there as well.

[jy211]

what's the back spacing on the wheels? Are you running OEM brakes? original rear end in the car? If not what's the length?

[55Sedan]

My Silverado has 275/55-20 and they have 6" of sidewall. May be a little extreme for your car, but you said you wanted big sidewalls.

[H35]

The car has a stock 10 bolt with stock drum brakes.

The BS is 5.75.

[H35]

I had 275/40/17 on there before with plenty of room, and the tire was already sitting in the fender a little.