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19.5 tires
#816163 Sat Jan 14 2012 02:07 AM
Joined: Jul 2006
Posts: 596
T
Tomcoe Offline OP
Shop Shark
I'm going to have some wheels made, and I'm hoping to use a 19.5 as it is the closest to stock AND the company I'm having build the wheels will use the original wheel faces and add the new rims to them...great. My question is this. What is the largest, NARROW, tire available. I'm hoping to get something simular to the 8.25 x 20 tire....can I do this in a 19.5? Any experience and help in this department would be appreciated. Thanks, Tom


When I yield to Him, it's amazing how peaceful and enjoyable life is meant to be.

1947 Chevy COE
In the Stovebolt Gallery
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Re: 19.5 tires
Tomcoe #816187 Sat Jan 14 2012 03:40 AM
Joined: Apr 2001
Posts: 208
B
Shop Shark
I was looking into running 19.5 tires on my truck since I already had the rims. The problem I found was that there are not many choices for tire sizes. Most are around 32" tall and the tallest is a 8r-19.5 that is around 34" tall. 8.25-20 tires are just over 38" tall and 34" tires will probably look too small on your truck.


Shane
1959 Apache 3100 Fleetside
1959 Apache 3200 NAPCO
1957 Chevy 5700 Low Cab Forward
1959 GMC F370 LCF
Another 1959 Apache 3100 Fleetside
1959 Chevy 5700 LCF
1946 Chevy 1/2 ton
1958 GMC 600
1974 Elcamino SS




Re: 19.5 tires
buggy5872 #816255 Sat Jan 14 2012 10:28 AM
Joined: Jul 2008
Posts: 115
T
Shop Shark
A 19.5" tubeless is the equal of a 17" tube type. Like said, an 8R19.5" will be 34" tall and would use a 6" rim that is commonly available. To replicate an 8.25 x 20" tube type you'll want a 9R22.5" that will have the same 38" height. This tire is spec'd for a 6.75" rim. Minimum width is 6.00 and max is 7.50, but I'd worry about rubbing with the 7.50. I talked with American Wheel Specialist in Pasco, WA, a few years ago about this and was told the 6.75" replacement rims exist but, at that time anyway, were not readily available. Since then I have seen where a fellow had wheels rebuilt by them with these narrow rims, so maybe supplies have improved. Stu

Re: 19.5 tires
Tomcoe #816285 Sat Jan 14 2012 03:54 PM
Joined: Apr 2001
Posts: 208
B
Shop Shark
Here is a picture of what the 19.5 looked like in the wheel opening of my truck and one with 9r-22.5 tires on my chassis with the front clip so you can get an idea of the difference
http://inlinethumb22.webshots.com/48661/2660412890102329435S500x500Q85.jpg

http://inlinethumb34.webshots.com/47969/2876789630102329435S500x500Q85.jpg


Shane
1959 Apache 3100 Fleetside
1959 Apache 3200 NAPCO
1957 Chevy 5700 Low Cab Forward
1959 GMC F370 LCF
Another 1959 Apache 3100 Fleetside
1959 Chevy 5700 LCF
1946 Chevy 1/2 ton
1958 GMC 600
1974 Elcamino SS




Re: 19.5 tires
buggy5872 #816872 Mon Jan 16 2012 10:37 PM
Joined: Dec 2003
Posts: 2,736
Shop Shark
a friend and customer of mine who has a F*$d commercial chassis pool told me last week that F#%d and all others are having a terrible time obtaining enough 19.5 tires to make production demand so that may prove valuable to you when chasing down tires.
This will make the costs higher if you can find them I'm sure.

Last edited by 53moneypit; Mon Jan 16 2012 10:38 PM. Reason: spelling

1953 Chevy 5-window 3100
In the Stovebolt Gallery
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Dave
Engine & Driveline Moderator

If you can't make seventy by an easy road, don't go. ~~ Mark Twain
Re: 19.5 tires
Tomcoe #816876 Mon Jan 16 2012 10:48 PM
Joined: Jun 2011
Posts: 3,801
E
Shop Shark
Tomcoe, what bolt pattern is on your truck?


'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
Re: 19.5 tires
EdPruss #816878 Mon Jan 16 2012 10:51 PM
Joined: May 2005
Posts: 9,147
G
.
I haven't seen 8rR19.5 tires on anything new in a while, I think most manufactures running 19.5's are using the metric sort. Don't know if its hard to find the metric ones is it also hard to find a 8R?


1951 GMC 250 in the Project Journals [stovebolt.com]
1948 Chevrolet 6400 [stovebolt.com] - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
1952 Chevrolet 3800 pickup [stovebolt.com]
---All pictures [picasaweb.google.com]---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-
Re: 19.5 tires
Grigg #817913 Fri Jan 20 2012 12:29 AM
Joined: Dec 2003
Posts: 2,736
Shop Shark
I can't add anymore than I've posted unfortunately. This freind/customer was the first to tell me of it.


1953 Chevy 5-window 3100
In the Stovebolt Gallery
More pix on Picturetrail

Dave
Engine & Driveline Moderator

If you can't make seventy by an easy road, don't go. ~~ Mark Twain
Re: 19.5 tires
buggy5872 #1366873 Sun Jun 28 2020 10:47 PM
Joined: Apr 2020
Posts: 3
A
New Guy
Would someone please repost the pics of the 19.5 rims vs 22.5 in the wheel opening?

Re: 19.5 tires
Tomcoe #1367685 Sat Jul 04 2020 12:15 PM
Joined: Jun 2005
Posts: 228
W
Shop Shark
I'm curious to see that as well


'66 c10 rust bucket, 350 nv4500 stock bellhousing, '85 c30 front suspension, h072 rear axle with 3/4 ton rear coil springs
'67 cj5 225 oddfire motor, time for disc brake conversion, offset rear dana 44, intermediate pedals and steering upgrade
'48 3804 frame and bed + '52 6400 cab and front clip + 4bt, need to put them together
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