20" Direct Bolt On???

MOAR111

I have a questions now. I have read this post and the other on 67-72 Chevy forum. Spent a good part of the afternoon crunching numbers of tire height and load rating, then went wait a minute, we run 20's on our service truck. This is my question: Can you run a 31.90" tire on a bagged out truck? TW&T sells 22's with 305/40/22 that measure 31.70", I don't know if anybody is running them on the front thou.

Here is what I came up with fellow friends:
Kumho has a 20" tire that has a load rating of 2833lbs, fits on a 7.5" rim and measures 31.90"(275/55/20). The tire is called the ECSTA STX, the exact tire we run on our service truck. True, they are 295/45/20's, which from what I can see they dont offer anymore. But none the less, they are excellent tires. We run a '97 Chevy ex-cab short box 1/2 ton that rolls down the road all day at 8280lbs. Now add 1000lbs plus to the rack of garage doors and your pushing close to 10K. As near as i can tell, if you run a 275/55/20 that has a load rating of 2833 minus the 10% for running duals, the ending load rate is 10,198 across the rear end.

What is your guys input on this?

I wonder if a 275/55/20 would look to meaty on a bags and BD? From what I gather the tire selection is at a min. I am def looking into this as mine needs tires....and I only drive it like a 100 miles a month.

Tire selection is limited if you plan on towing a lot, but if it's just a cruiser, there are plenty of 20" light truck tires out there.

Wanted to chim in a little, I know most that have been fallowing this are bow tie drivers. I drive an blue oval and almost all of us would like to find something different and affordable. Found some tires that could work on these 20" wheels after a call to my local AE dist/wharehouse today 2/15/13 and found out they are sitting on two full set's for my truck. How they scored them I'm not sure but I'm going down Monday to put eyes on them, and maybe a pic or two! these are what i would possibly run on front and rear, just a little hot rod'ish of a look.

Falken Ziex S/TZ05
(my OE tire dia is 30.40")
Rear 275/55-20 31.90" Max Load 2833 lbs each X4-10%=10k This would help with my 4.10 gears
Front 265/50-20 30.50" M.L. 2405 lbs each Questionable for my 7.3L, not sure how they will hold up to that much wieght??? Does anyone know how the lo pro tires or another size(ie 22 or 24) with simular load rating are holding up under diesel motor wieght?

I'm leaning twards them, but kinda still want the 22" Rig style and those sweet spike lug covers! Lol

I am pretty sure my 255/30/24's arent rated high enough either but many have been ruuning passenger car tires for years without troubles. My 19's were car tires and towed alot on them.

anybody pull the trigger on these?

so anyone got any yet? or has anyone seen any yet? been relisted at least 3 times on ebay as "available in three weeks" makes me wonder how many have prepaid for them and how many have got them

i talked to a local custom shop here in nashville tn. and i was told last week,45 days.i'd like to see them on a ride too,before i go and get a set.

Bump. Any new info. Heard they don't tuck on the C/K trucks. What about the squares?