Ordered new wheels now trying to get an idea of tire size

[808_67C10]

I have a 85 c10 - up front (springs/drop spindle) and a flip kit in the rear (no c notch)

I ordered US Mags 20x8 for the front and 20x9.5 for the rear.

I looked through tons of threads and am having a hard time coming up with the right tire. I want a little more beef in the rear but not too much to make it look akward.

Anyone have any thoughts? I dont want to take out or modify my front fenders either - just want to do it right the first time.

Currently I have 275/50-15 rear and 225/60-15 front (the fronts are a bit too small)

[LuvNLife]

I used this chart to help me when I was shopping for tires:

https://tiresize.com/chart/

Stock diameter tires on our squares (2 wheel drive) were right around 29", so that's what I looked for on the rear. Up front, I went with something like 27.6 tall, since I wanted a bit of the "big and little" look...

[jrpontiac]

Posted via Mobile Device

[808_67C10]

yep, I have used the tire size chart to compare sizes but, looking for advice on too big, too small, too much side wall bulge... mainly what works for people so, I know it will work for me.

[layinrocker65]

I have US Mag Ramblers in that size. 245/45-20 and 275/40-20. 2.5 spindle and one coil cut up front and a flip in the rear with no notch. I love the tire height combo.

You’d probably want to go slightly bigger in the rear if you want it a bit beefier.

[77c10]

I run 285/50/20 on the rear of mine on a 20" x 10" wheel

[808_67C10]

Right on, thanks. I was thinking a 245/45 up front and maybe a 295/40 in the rear... u think the 295 may be too wide for the 20x9.5 outback?

[77c10]

I'm running 245/40/20 on a 8" wheel up front on mine. 295 is just a smidge wider, you may be able to get away with it.
295/40 is 11.6" versus a 285/40 at 11.2". I have barely enough room to fit two fingers between the inside of my tire and the wheel well. I could probably get away with a 295 but just haven't tried yet.

[SCOTI]

Originally Posted by 808_67C10

Right on, thanks. I was thinking a 245/45 up front and maybe a 295/40 in the rear... u think the 295 may be too wide for the 20x9.5 outback?

245/45-20 = 28.68 tall. On an 8" wheel you would be @ 1.07" of tire per inch of width.

295/40-20 = 29.29" tall. On a 9.5" wheel you would be @ 1.10" of tire per inch of width.

Spot on.

[75C10]

Nobody has mentioned back spacing and that will be critical for wheel tire fit.

[SCOTI]

Originally Posted by 75C10

Nobody has mentioned back spacing and that will be critical for wheel tire fit.

With those wheel sizes on a square w/a mild drop I would recommend 4.5"bs front & rear.

[rickit]

I have riddler wheels don't rember back space ,I think they only come one way, have 8.5 on front and 10,s on back, I have 2.5 drop spindles and 1 inch springs rear leafs are flipped I first put 245 45 r20 on front and 295 45 r20 on rear in first pic, I changed tires today went with 275 45 r20 on front and305 50 r20 on rear in second pic hope this helps, I to was confused on tire size but I got the combo I was wanting now

[Roaddogg]

That combo in the second pic looks nice

[808_67C10]

Originally Posted by rickit

I have riddler wheels don't rember back space ,I think they only come one way, have 8.5 on front and 10,s on back, I have 2.5 drop spindles and 1 inch springs rear leafs are flipped I first put 245 45 r20 on front and 295 45 r20 on rear in first pic, I changed tires today went with 275 45 r20 on front and305 50 r20 on rear in second pic hope this helps, I to was confused on tire size but I got the combo I was wanting now

Thank you so much!! The pics help greatly! All the wheel threads should say - wheel and tire combo so, people post wheel size along with the tires that are in the pic. It helps people see that it will look like too... because that matters as much as fit... if you didnt care how it looked, you would have a Prius.

Thanks again. I personally like the first pic... why did you go taller?

[brady01]

255/40/20 fronts on 20x8 and 315/35/20 rears on 20x10s. Flipped rear and 2.5 inch spindles with 2 in springs. No rubbing anywhere. Pull my 18ft ranger bass boat with it too.

[rickit]

Originally Posted by 808_67C10

Thank you so much!! The pics help greatly! All the wheel threads should say - wheel and tire combo so, people post wheel size along with the tires that are in the pic. It helps people see that it will look like too... because that matters as much as fit... if you didnt care how it looked, you would have a Prius.

Thanks again. I personally like the first pic... why did you go taller?

I always have liked a little bit of sidewall the 245,s just seemed to short with the stance of the truck to me, I plan on raising the rear about one inch or droping the front one inch to give it a little rake

[808_67C10]

Originally Posted by brady01

255/40/20 fronts on 20x8 and 315/35/20 rears on 20x10s. Flipped rear and 2.5 inch spindles with 2 in springs. No rubbing anywhere. Pull my 18ft ranger bass boat with it too.

Good looking truck! I really like the color combo! Thanks for the info.

[brady01]

Originally Posted by 808_67C10

Good looking truck! I really like the color combo! Thanks for the info.

Thank you!

[808_67C10]

So, in the end, I purchased U111 Rambler wheels 20x8 with 245/40 and 20x9.5 with 275/40 Nitto tires. Shipping to Hawaii is a little more but it came to 2k total (with shipping, mounting & balancing, and a new set of lug nuts). All in all not to bad. should be here in about 2 weeks. I got them from SoCal Custom Wheels and their customer service was AWESOME... they worked with me and found reasonable shipping options to Hawaii - not many vendors are willing to go that extra mile.

Just as a teaser - I ordered a FITech EFI set up for it! That should be fun!

I will throw some pics up when I get the wheels here and on my Square (haven't named her yet - thats why I havent done a build thread).

[44boggers]

Originally Posted by brady01

255/40/20 fronts on 20x8 and 315/35/20 rears on 20x10s. Flipped rear and 2.5 inch spindles with 2 in springs. No rubbing anywhere. Pull my 18ft ranger bass boat with it too.

What backspacing are you running on the front and rear?

Thanks
Paul