Tire size for a 72 dart

[moparfanatic56]

I have a 72 dart that I would like to put wider rear tires on. I will be using 15 in cragar ss rims with 4.25 in back spacing so would 275/60 fit inside the wheel housing that has no modifications without rubbing anywhere or would 245/60 be a better fit. Thanks

 

[1971 CY Dodge Dart]

275/60-15? No

255/60-15? Maybe but you’ll need to measure it.

 

[moparfanatic56]

I didn't think that The 275 would beings it is about 10.8 inches wide. Thanks

 

[33IMP]

A 275 MIGHT fit on the PERFECT rim.
A 4.25 backspace cragar isn't it. (Assuming a 15x8 or 8 1/2)
235 or 245 would be a better guess.

 

[Unconventional]

<~~~~ has 15x8 4 5/8 backspace with 235-60 on Charlie the Swinger. rolled fender lips, Hijackers and 30 lbs

 

[MoparLeo]

You need to measure your car. Both sides. No 2 cars are exactly the same. You will probably find more clearance on one side.
These cars came with a tire about 4" wide. The original tire and wheel info is in your factory service manual I believe around section 22.
https://www.1010tires.com/Tools/Whe...1iHb-InlPy91hfUVR22ii_2tXDB9n5WG2xV7Ovw0QkeJt

 

[DartGTDan]

I've got 245/60R15 tires, on 15" X 7" wheels, with 4 1/4" backspacing on my '71 Dart GT. It has the factory installed 8 3/4" rear end. It also has ManciniRacing 2800lb springs, courtesy of the previous owner, in the stock location(s). The next time I need tires, I'll go with 255/60R15 tires.

 

[moparfanatic56]

I've got 245/60R15 tires, on 15" X 7" wheels, with 4 1/4" backspacing on my '71 Dart GT. It has the factory installed 8 3/4" rear end. It also has ManciniRacing 2800lb springs, courtesy of the previous owner, in the stock location(s). The next time I need tires, I'll go with 255/60R15 tires.

View attachment 1716380876

View attachment 1716380877

How is the ride with the mancini springs, I need to upgrade my stock ones that are very saggy.

 

[DartGTDan]

I think it rides fine. I've owned the car since August 18, 2003 so the springs have been on it for a while and I'm sure they've "settled".

 

[harrisonm]

Look around and find a tire shop that would be willing to test fit a few sizes for you. I bet you could find one.

 

[72bluNblu]

275/60-15? No

255/60-15? Maybe but you’ll need to measure it.

This ⬆

275's are tough even with a 1/2" spring offset on a 67-76 Dart.

255's are the maximum for the stock spring locations and some cars might still require some quarter lip work to make that happen depending on body tolerances and ride height.

 

[junkyardhero]

68 dart with 8.75 and big bolt axles. 15x6.5" stock steelies with 4.25 BS and 235/60's

closer on driver's side than the pass. i *might* be able to get 245's on there if i rolled the lips flat flat. or possibly a 7" rim with 4.5~4.75 BS