Hello, I know there have been numerous threads on tire sizes, but I have been unable to find this exact info using the search engine. 1970 Challenger, Stock front end with 15 X 7" Centerline Champ 500 rims. I would like to go larger on the front tires maybe
225 70 15s. ?
Anyone know if they will fit? That's a pretty big front tire. I thought I would start on this forum and maybe post it on the suspension page as well.

Mickey Thompsons Sportsman ST with raised White letters, Will they even fit without rubbing during cornering etc.?


Otherwise, I will scale down to
215 70 15s
I already have big tires in the back
315 60 15s (30" tall) Stock wheel wells, Ladder Bars, leaf springs have been removed.

Thanks.

I have 235 60 15's on the front of my Challenger with no problems. I do have fiberglass fenders if that makes a difference. I would think 225 70 15's would fit OK, but someone else should know for sure.

Thanks. Using a comparison calculator, a 225 70 r 15 is 1.3" TALLER than a 235 60 15.

1.3 overall height difference is .65 larger radius. So roughly 5/8 of an inch. If the 235/60 has more space than this in any area, the 225/70 should be okay, but ride height can be a big factor. If its stock, probably no problem. If its turned down at all, it might rub.

Go browsing pictures of drag cars. 27.4 overall diameter with 6" tread isn't far off from a 27x4 front runner size.

225/70/15 BFG TA 15 x7 rallye wheels fit on the front of my 70 Cuda. 27.5" The only picture I could find was from when I was trying out a friend's rear combo to see how it looked. The stance is perfect with 275/60/15 on 8" rims on rear.

Top picture 225/70-15 on 15x7 Torq Thrust wheels with 3.75" back spacing.
Perfect fit, no rubbing. Best front tire height to match rear 28" tire.

Bottom picture 245/60-15 tire on a 15x8 wheel with 4.50" back spacing.
About 1.5" shorter than the rear 275/60-15 28" tall tires.
Tires will rub slightly on inside frame during full lock turn.

Thanks for the pictures everyone. I have 30" tall Mickey Thompson P31560 R 15 drag radials tucked into the stock wheel wells on the back. Mounted on 10" Centerline Champ 500 rims with 5" backspacing. So, I will give the M/T 22570s a try on my 7" rims. As long as they don't rub, they will look good with the Raised White Letters. Car should have a nice stance. I should just rename the car. "The Money Pit" would be appropriate

That's a good sized tire under the rear, is the rear end stock width?

I stuffed 325/50-15 drag radials on 15x10 wheels under my wife's Challenger using a 1967 B body rear end and Dr. Diff's offset spring hangers.

I shortened the stock rear end a small amount to fit the 315 60s on the 10" Rims with 5" of backspacing into the stock wheel wells. The tires fit nicely, tucked up inside the stock wheel wells, however the leaf springs are completely gone since I did a ladder bar coil/over setup at that time and added Strange D/A shocks. The ladder bar/coil over set up was one of the best mods I ever did. It was a pain (as you know) since it also required shorter axles as well. I ordered some shorter Mark Williams 30 spline axles also added Mark Williams steel caps to the 8.75" differential. Installed a detroit locker in the rear as well. I also have a set of 9" Centerline Champ 500 rims, but they are from the pre ladder bar days and require wheel spacers to fit the current rear end combo. They are currently on the car while I perform a garage alignment. I would love to find another set of 10" X 5" Champ 500s some day. I am going to mount the 10" rims back on the car very soon with the 315 60s MTs. I have a set of worn out slicks currently on the rims. Centerline discontinued the line many many years ago, then they went out of business. I see the Centerline brand is back up and running, but the CONVO PRO and the AUTO DRAG are the only "old school" wheels they offer. I will post a pic

Thanks for the input! New rubber all the way around! 7" CENTERLINE Rims with 3 7/8" backspacing up front, 10" CENTERLINE Champ 500s with 5" backspacing in the rear. The rear has been modified. I can assure you that this is the absolute biggest rear tire that can be fit into a stock wheel well (leaf springs removed of course).
P22570R15s Mickey Thompsons up front
P31560R15s Mickey Thompsons in back