Rear wheel and Tire combo.

[Big AL]

I hope this doesn't sound dumb but here goes... What is the widest wheel and tire
combo I can mount on my Stock 70 Challenger RT ?
Right now I'm running P235/60R15s front and P255/60R15s rear.
Any help is appreciated. ​

 

[djais1801]

I am running 225 70 15 up front and 275 60 15 in rear (have air shocks now) but ordering superstock springs

 

[Big AL]

I am running 225 70 15 up front and 275 60 15 in rear (have air shocks now) but ordering superstock springsView attachment 67746

Thanks but is it the widest wheel tire combo you can mount ?

 

[djais1801]

Thanks but is it the widest wheel tire combo you can mount ?

I know a guy with a 73 challenger and ss springs with 295 50's on 15x8 rim

 

[gzig5]

Measure from the spring to the wheel well. that is as wide as you can go without moving anything. Probably about a 295 maybe a 305 with perfect wheel offset. Measure both sides because sometimes the axle isn't well centered. Move the spring an inch and a 315 will fit. I think I've heard of 325 or 335 fitting in the wheel house after moving the spring further.

 

[Fishgutz]

Hey Big Al,
Without any mods, l tucked a pair of 275 x 40 x 17” under my Cuda. They ride on 17” x 9-1/2” Centerlines. Unfortunately, Centerline does not offer this series anymore. I used a Percy Wheel Fitment tool to determine the correct offset. They’re a bit spedy ($75.00) but money well spent. Good luck finding the perfect combo.
Fishgutz.

 

[Big AL]

Hey Big Al,
Without any mods, l tucked a pair of 275 x 40 x 17” under my Cuda. They ride on 17” x 9-1/2” Centerlines. Unfortunately, Centerline does not offer this series anymore. I used a Percy Wheel Fitment tool to determine the correct offset. They’re a bit spedy ($75.00) but money well spent. Good luck finding the perfect combo.
Fishgutz.

View attachment 67754

View attachment 67755

Your setup looks great.... Thanks.

 

[Big AL]

Measure from the spring to the wheel well. that is as wide as you can go without moving anything. Probably about a 295 maybe a 305 with perfect wheel offset. Measure both sides because sometimes the axle isn't well centered. Move the spring an inch and a 315 will fit. I think I've heard of 325 or 335 fitting in the wheel house after moving the spring further.

Thanks for the input.. Just trying to get it ready for spring.

 

[6PKRTSE]

A 315 requires more than just an inch. I have mine moved into the frame rails (3") and it is tight all around with 316/60/15 D/R's but I have my car sitting pretty low for a 30" tall tire.

 

[Knock Out]

I hope this doesn't sound dumb but here goes... What is the widest wheel and tire
combo I can mount on my Stock 70 Challenger RT ?
Right now I'm running P235/60R15s front and P255/60R15s rear.
Any help is appreciated. ​

 

[Knock Out]

Hope this helps
Running 255- 50-17 rear- could go a hair wider and taller
225-50-17 front
Firm Feel Suspension
Car sits about an inch lower than stock
Handles and rides really well, corners very flat
Running 17 in wheels to fit over the Wilwood brakes
Next step to get 17"magnum 500 style wheels-not a fan of what I have
enjoy your ride

 

[AUSTA]

Trying on the Forgeline ZX3 test fit on a standard setup rear 5.75 backspace 275/40/18 Bridgestone super sport pilot front 4.5 245/40/18 same about 1/2 clearance both sides on rear
1 inch difference in height front to rear both about 1/4 inch height (smaller) different than a standard TA setup

 

[Knock Out]

Looks great

 

[Cratos]

295s on 15 x 10 keystone just use a a body rear and doc diff 1 inch relocation kit,

 

[MerlinsMopars]

295s on 15 x 10 keystone just use a a body rear and doc diff 1 inch relocation kit,

View attachment 78691

View attachment 78692

Did you have to move the perches on the a body rear with the dr diff kit? What was your backspace?
Thx,
Scott

 

[Cratos]

the A body rear I picked up needed them added on, someone have moved them way inboard like for a drag car. so yes I had to have them added @ 44 inch center to center for things to line up. the keystones 15 x 10s did not offer diffarnt back spacings but they are a deep dish wheel.