1940 ford
 

1940 ford standard coupe original will a 15 x 8" rim work are is it to wide

Re: 1940 ford
 

No experience with an 8" rim, but I have 7" rims on the rear of mine. They worked well with P225/70R15 tires, no scrubbing, etc. I changed to 235/75r15 and they work well most of the time. I get some slight rubbing against the inner fenders on an uneven approach to a steep incline.

So I will hazard to say that IF your tires don't overhang the sides of the rims by an inordinate amount AND if you have the correct backspacing they will work.

Re: 1940 ford
 

Eights are too wide. You can use 7's or 6's, but if using the stock shocks you may have a problem with the tires rubbing the shock arms and tearing up the inside of the tire.

Re: 1940 ford
 

I didn't mention-I have tube shocks on the above example

Re: 1940 ford
 

Too wide. Remember an 8 inch rim actually measures as 9 in. wide edge to edge. Then when you add the width of the tire it's even greater.

Re: 1940 ford
 

On a '40 with a stock rear end still in the car, a 5-1/2" wide 15" F1 wheel with a 225-75 tire gets very close to the spring hanger.

Re: 1940 ford
 

Very good point. The distance from the spring hanger to the tire on my stock 40 is rear about 7/8 inch. The shackles are home made but are the same length as the originals. Tires are 7:60x15 on 15 x 6 (total width of 7 in) 15 inch rims with 4 inch back space. I found that the largest rim you can comfortably use is a 15x6 with 4 inch backspace. The red thing at the top is a brake drum retainer.

Re: 1940 ford
 

I use a 7" rim in the rear of my 39 std. coupe. I have 235R70X16 tires. Like 40 cpe, they only rub on turns into driveways. I have no rear shocks at this time, and no sway bar in the rear. No way would an 8" rim work for me

Re: 1940 ford
 

Thanks for the replies, I will go with a 6" and see if that will be alright

Re: 1940 ford
 

I have 8" wide 15" rims on my '39 with 225-70 tires. Only .25" clearance between the spring and the wheel.