E-Body Tire Combos

[Padawan]

After I fixed my saggy rear by adding leafs I discovered that the 225/70R15 for the front are just a wee bit too large (diameter-wise). So I scaled back and am now running 225/60R15 in the front (on 7" rims) and 275/60R15 in the back (on 8" rims). It's on the high (and wide for the 275) side for me but I like it! Much much better than the 205/60R14 before with the saggy back. Now if only Summit delivers those center caps... 


Larger image right here.


Again, larger image here.

[ragtopdodge]

That's one beautiful SE you got there!

I'd lower F and R maybe an inch, but hey, it's at least not as high as the new Challengers!

[Padawan]

That's one beautiful SE you got there!

I'd lower F and R maybe an inch, but hey, it's at least not as high as the new Challengers!

Thanks! Agree, 1 inch lower would be perfect; it's getting close in the rear but it might just work...

[ragtopdodge]

SE's about perfect, but I'd add the SE rocker chrome and a black bumblebee stripe.

 

[austinbbmopar]

My 74 Challenger with 305s

18 x 8 front 245 / 45 R 18

18x 9.5 Rear 305 / 40 R 18
 
Dr Diff offset hangers and a B body rear end

[moparrecyclers]

OK, lets get a tire/tyre size combos thread started. Too many wasted threads about one topic.
Chryco if you or Ross or someone could sticky this topic that would be good.

Post what rear end you have, tire size, wheel size + back spacing etc
Also any mods or relocation kits that were needed to fit your wheel combo along with photos, definitely PHOTOS.


I'll go first:

1970 Dodge Challenger R/T
8-3/4 SureGrip

15x8" Rallyes Rear with 275/60 BFGoodrich Radial T/As
15x7" Rallyes Front with 245/60 BFGoodrich Radial T/As

Chrysler Rallye wheels: 56 Series purchased from www.jegs.com All wheels have a 4-1/2" (4.5) Back Spacing.
Rear trim rings leave a 1" gap due to the wheel being 8" and repro/OEM rings only available in 7" sizing.

No rubbing, no relocation kits, no worries. 

Cheers,
NZ440R/T

carlwalski..... I bought some 15x8's' Rally's on eBay (on sale Summitt $102.00 free ship) and some BF Goodrich T/A's P27560r15's from TireRifik in Watertown Wi for $134.00 ea. and they got delivered on Friday and they look awesome, just hope they fit the stock 71cuda.
I am excited to get them mounted.

[moparrecyclers]

Well got the tires mounted and not only do they fit like you said, I dig the way they look
Thanks to this thread.

[moparman70rtse]

What's the tallest tire dia. I can use on 70 challenger without tire clearance problems?
 
Thanks

[brads70]

My 74 Challenger with 305s

18 x 8 front 245 / 45 R 18

18x 9.5 Rear 305 / 40 R 18
 
Dr Diff offset hangers and a B body rear end

Looks great! Would you happen to have a picture from the rear showing the width of the tires?
How much clearance on the rear tire? Did you roll the fender?

[Super Blue 72]

What's the tallest tire dia. I can use on 70 challenger without tire clearance problems?
 
Thanks

I don't think there is so much an issue with tire clearance but more so effecting the speedo or gear ratio.

275/60-15 is what is commonly used on the street and is about 28" tall.  If you see cars at drag strips they fit much taller tires but not sure what they use.

[HP2]

What's the tallest tire dia. I can use on 70 challenger without tire clearance problems?
 
Thanks

Front, rear, radial or bias ply?  The most common combo is 235 front, 275 rear which is a 26/28 combo. This typically does not have interference issues, provided you get back space dimension that keeps things in tight.

I have run 28" front and 30" rear using drag tires. That means they may not be as wide as many would like on the street. 4" on the front and 10" on the back, and they did not have to deal with driveway angles, curb cuts, or other street issues.

Additionally, if you are running a taller tire, construction becomes important as bias ply tires, high tire pressures, heat, and acceleration can make them grow in diameter. If you are marginally fitting at static load, then the combination above could allow them to grow enough to make contact.

[moparman82]

Looks great! Would you happen to have a picture from the rear showing the width of the tires?
How much clearance on the rear tire? Did you roll the fender?

You read my mind brad hahaha. Starting to look like you and I have real similar taste, my TA clone will be go mango, with a 419 stroked 340 all the suspension and stiffening I can get my hands on! Lol   I'll have to get to Carisle next year so we can have a small block and big block ebody category at the autocross!

[brads70]

You read my mind brad hahaha. Starting to look like you and I have real similar taste, my TA clone will be go mango, with a 419 stroked 340 all the suspension and stiffening I can get my hands on! Lol   I'll have to get to Carisle next year so we can have a small block and big block ebody category at the autocross!

Sounds like fun! 

[moparman70rtse]

I don't think there is so much an issue with tire clearance but more so effecting the speedo or gear ratio.

275/60-15 is what is commonly used on the street and is about 28" tall.  If you see cars at drag strips they fit much taller tires but not sure what they use.

Thanks for the reply
I'm using repo rallye wheels 15x7 front and back, I think 4.25 back space. I'm thinking of 245 60 on the front and 265 60 on the back. Will that be ok?
Can 265 60's be used on a 15x7 rim or would I have to use a 15x8?

 Thanks

[Super Blue 72]

I heard 245/60 up front might be tight.  Not too sure but I know on the first post by Carlwalski and he uses the 245/60-15 up front but has 4.5 back space so you would need to watch out on the inner edge of the tire/rim. 

Not sure if the 265/60 will work on a 7" rim, not saying yes or no.  Try calling a local tire place and I know before when I went to NTB they had a book to show what size tire can be safely mounted on what width rim.  Or you can look on this thread and see who has tried it.