Size does matter....

[billschroeder5842]

Wheels!

Time for a set of wheels for my 75! I'm running stock 14" now but want something a bit bigger and with some 70's retro style.

I'm not sure on sizing and am a bit confused. I'm sure that 15 x 7 with a 225 will work nicely on the front. On the rear I'd like to get something that fills ups the wheel well BUT am not interested in something so big that I have to worry about rubbing.

I'd like a 15 x 8 with a 275 but am concerned about the back spacing. Frankly I don't know what all that back spacing is about.

I'd rather be safe than sorry.

Any thoughts on sizes???

Thanks!

[Dino]

I have no clue what fits on a 75, I know 2nd gen Chargers and...2nd gen Chargers.   

Backspacing is measured from the back of the hub (bolt holes) to the edge of the rim facing the axle.  The more backspace a wheel has, the more your tire will move towards the center of the car and inner wheel well.  The less backspacing, the more the tire moves outward.  On a 2nd gen, a 15x8 with a bs of 4 to 5 and a 275 will have room to spare but will look nice and centered. 

[charge69]

Like Dino,  I, also, have no clue about a '75 model but, I do have 15x7 with 225x70x15 fronts and 15x8 with 275x60x15 rears on mine.  They were an easy fit and I have absolutely no problems with backspacing! Just about anyone's standard backspacing for these sizes should fit but, ....... no real clue on a '75.

[billschroeder5842]

75's (While appearing confusing) are a true blue "B" body with lots and lots that are interchangeable.

After I sold my 69 in August and picked this one up in November, the learning curve was almost nil.

[TUFCAT]

I don't know what size tires you need....but I'd like to see more pictures of your Roadrunner 

[Nacho-RT74]

about tires... check the 3rd gen tires combo thread. Springs and frame rails are the same, and wheel wells are allmost the same ( pretty sure inner is the same )

about wheels... I think everybody will post the same opinions and the same we have being posting since ever. Cragars, TorqTrust ( although they are too much Chevy to me ), Keystones Klassic, Mags, Magnums, Smoothies

I think on your car, Magnums are not the right choice anyway, neither Smothies. Keystones and Craggars are a good option... Mags could be too, but they are too basic to me.

Maybe GL turbines ( vector ) could be a good option too ?

American racing CP200S ? ( polished version ) something similar to Cragars but a little bit diff, middle of the line between them and TTs, not excesivelly common like the Cragars and will fit nicelly with you RR body lines

[ODZKing]

It is the same wheelbase and platform as the 75-79 Charger/Cordoba/Magnum.  115 inches so i would assume it shares everything else as well.