Will a 15 x 7 standard back spacing ralley wheel with a 255 BF Goodrich tire fit on the rear of a 69 Dart without any mods ? Yes the wheel is small bolt pattern.


logan426

No, not unless everything is perfect, and even then they may rub in turns or when passengers are in the back seat. 245/60-15 is the widest that will typically fit the stock 8.75 rear axle without relocating the springs and/or rolling the quarter lip.

The 15x7 wheels from a Chrysler 5th ave, 86-89 vintage fit fine. I dont know the backspacing of these though. I had a pair on a 69 Dart with an 8 3/4. They fit fine.
I also had a pair of WIDENED rally wheels, 15x8 in the rear of my own 67 Dart, also fit fine, using a 255/55/15 tire. It was an oddball size, but looked great and fit without rubbing. Both cars had totally stock wheel tubs, ZERO cutting anywhere.
If I get the hankerin' to use nonstock, wider wheels on an unfamiliar chassis, I do the following:
Set the car on jackstands, positioned under the rear axle and under the control arms. This will allow the car to sit in a position similar to being on its own tires. I take a stock rim without a tire on it and see how much clearance I have. Then I look to where I can add width. I try to keep 3/4" of space at a minimum from the tire sidewall and any suspension component.
The 67 Dart I had was equipped with an 8 3/4 axle from a 68 Coronet, so I had to have the rear wheels MADE to the size that I wanted. This did allow me to fit a wheel much wider than stock.

I ran weld draglights 7" with 4 1/2" backset with a 245/60/15 on my 68 Dart

I had the 8 3/4 with moser axles/green bearings/large brakes,which made the whole rear wider by a 1/2"...1/4" each side

they fit perfect in the wheel tub with a 1/4" clearance at the fender lip and at the tire bulge and leaf spring( did not roll the fender lip)

i did get a 235/75/15 on the 7" with 4 1/2" BS on it once..it was very tight getting it in the wheel tub but wound up too tall for meand was a little at high speed(rear jacked up)

when i used a large bolt 7 1/4 rear axle the 4 1/2" backset with 245/60 would rub on the leafs at the tire bulge on hard turns(just enuff to scuff the riased white letters

the 68 small bolt 7 1/4 had 13" rims and never tried anything other that the stock 13x5? rim

swaped that 8 3/4 in the 85 truck and went 12" rim with the same 4 1/2" backset

mid 80s stock rims and the cop rims have a 4 1/4" backset on them,IIRC