Haven't bought a 68-70 Charger yet but already looking at wheel and tyre options, The American Racing Outlaw 1 wheels I will be buying, 235/60/15 with 15 x 7 on the fronts.

I want the rears to fill the arches as much as possible, I know this depends on how high the suspension is on the rear as to how big a tyre can go under there.

Details for the rear wheels are

15 x 10

Backspacing is 4.000 inches
Offset is -38.00 mm

Or

15 x 8

Backspacing is 3.750 inches
Offset is -19.00 mm

So just wondering on the rears whether to go

275/60/15 with 15 x 8

275/60/15 with 15 x 10

295/50/15 with 15 x 8

295/50/15 with 15 x 10

Am I right in thinking 295/50/15 is shorter than a 275/60/15 ? So the 295/50/15 would make the car sit lower at the back than a 275/60/15 ?

At a show the other day I saw a Charger with 295/60/15 on the rears, they may have been 295/65/15 , but i'm not sure if they are just racing tyres as they had the street/strip tread on them, this is the kind of look I want, see below pics.

Thanks