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AD truck tire upgrade needed?
#1364059 Mon Jun 08 2020 09:46 PM
Joined: Jun 2009
Posts: 641
F
Shop Shark
My '48 Chevy 1/2 truck currently runs on a set of 10 year old radial tires that have 7500 miles on them. Truck is housed in a pole barn and sees no winter salt. I wonder if I should consider replacing them due to their age.

If yes...I want to use a quality blackwall radial tire with a bias ply look and maintain the old school "tall/skinny" look as original. Wheels are 15" X 6" from the Wheelsmith. Rear end is still 4.11. I have a side mount spare tire that I would replace as well. Is there a recommended tire size AND recommended manufacturer/vendor to accomplish all of this?

I have truly valued the input from knowledgable members on this forum since 2009.

Thank you.

LUKE

Re: AD truck tire upgrade needed?
fonz8261 #1364066 Mon Jun 08 2020 10:43 PM
Joined: Apr 2008
Posts: 796
F
Shop Shark
I think I would start by Googling your question on replacement and read opinions. A thorough inspection of your tires is necessary to determine if you think they need replacement. Your driving habits and conditions also play a part. If you drive around town, like me, rarely over 45mph that would be different than regular highway driving. You could also get opinions from local tire shops keeping in mind they would have skin in the game so they may be biased. Can usually get a feel for the shop based upon how they treat you. Lots of tire options out there but again we get back to your driving habits. You drive approx 75-100mi/mo. so that comes into play.

Last edited by Forty9; Mon Jun 08 2020 10:45 PM. Reason: change info

Ed
Re: AD truck tire upgrade needed?
fonz8261 #1364077 Tue Jun 09 2020 12:24 AM
Joined: Sep 2001
Posts: 30,471
ace skiver


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: AD truck tire upgrade needed?
fonz8261 #1364091 Tue Jun 09 2020 01:40 AM
Joined: Jun 2011
Posts: 3,631
E
Shop Shark
Radial tires have a short life, they unwrap the belts, not especially dangerous, just awkward. Most tire shops won't remount ones, have to buy new ones if over 10 years old.

Ed


'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: AD truck tire upgrade needed?
fonz8261 #1364114 Tue Jun 09 2020 11:06 AM
Joined: Sep 2001
Posts: 30,471
ace skiver
My tire shops in NY would not remount any style of tire older than 10 years.

Can you post reputable source that says that radial tires have a shorter life compared to bias tires?

"Are there any advantages to bias ply tires? [tirebuyer.com]
Yes, in certain applications. Bias ply advantages include:

Less complicated tire construction and, therefore, typically lower cost.

The stiffer sidewall can be an advantage in certain applications, e.g., as trailer tires where a bias ply tire may deliver less sway and bounce than a radial.

Rugged design and sidewall puncture resistance (some agricultural tires are bias ply)

But today, bias ply tires on automobiles have mostly been relegated to classic car/truck restoration projects and car shows. If the goal is to replicate the true classic look, then bias ply tires achieve that best.

When it comes to your truck though, radial tires are almost certainly the ticket. There are a few modern manufacturers of bias ply truck tires, but almost no matter where and how you drive, you’ll be at an advantage with radial options."


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: AD truck tire upgrade needed?
fonz8261 #1364493 Thu Jun 11 2020 08:00 PM
Joined: Jun 2005
Posts: 227
W
Shop Shark
I would recommend some 235/85/16's. Those are relatively tall and skinny and pretty common


'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
Re: AD truck tire upgrade needed?
fonz8261 #1364508 Thu Jun 11 2020 10:59 PM
Joined: Sep 2001
Posts: 30,471
ace skiver
I have used (for about 15 years) Cooper LT215/85R16 on standard 4.5" 16" wheels/rims on my 1954 3106 Suburban (I had to use radial inner tubes).

I have the same size Goodyear truck radial on the 1954 3104 pickup (no need for inner tubes in these wheels).

This size tire on standard 1954 3100 16" wheels have a 31.5" rolling diameter (and, they look like old truck tires - tall and "skinny").

At the correct air pressure (determined by setting/driving/adjusting), the ride is smooth and straight and steering is easy (and, no "wandering) at all speeds.

Added later: radial tire tubes for trucks [amazon.com]
(scroll down for several brands)

Last edited by tclederman; Fri Jun 12 2020 10:22 PM. Reason: added link to radial tire tubes for trucks

Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: AD truck tire upgrade needed?
fonz8261 #1364574 Fri Jun 12 2020 10:54 AM
Joined: Jul 2019
Posts: 329
B
Shop Shark
I run 225/75/16’s on my 3/4 ton and they seem to be the perfect balance. Coming down the road they look like skinny tires and the height and sidewalls look “correct” on the truck. I originally wanted to keep the 16” split wheels and run bias with tubes but then after lots and lots of research and planning I realized I was going to be driving the truck A LOT! So I opted to go with the most proven up to date design. Radials on steel wheels. I used 3/4ton 8 lug ford wheels and just used stock gmc hubcaps. I have put over 5000 miles on the truck this year and I never worry about the tires. It goes 65-70 down the highway for as long as I want. If i get a nail in it i can just plug it and if I ever needed a tire on the road in a pinch I can just buy a new one and have it mounted. I do have the spare and tools but you know what I mean.... easier to have a common radial on it nowadays.

Attached Files
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Re: AD truck tire upgrade needed?
fonz8261 #1364671 Fri Jun 12 2020 09:20 PM
Joined: Jun 2009
Posts: 641
F
Shop Shark
Your input on this topic has been appreciated.

I currently have my eye on a set of tires from DiamondBack Tire. The company truck wears a set of 650R16s--check out the photo of their AD truck. The tires run $249 each.

Attached Files
Screen Shot 2020-06-12 at 5.08.45 PM.png (369.9 KB, 150 downloads)
Screen Shot 2020-06-12 at 5.08.52 PM.png (987.11 KB, 155 downloads)
Screen Shot 2020-06-12 at 5.30.18 PM.png (413.35 KB, 138 downloads)
Re: AD truck tire upgrade needed?
fonz8261 #1364750 Sat Jun 13 2020 02:30 PM
Joined: May 2001
Posts: 1,532
W
Shop Shark
My old bias ply tires would "hunt" for the ridges in the road. If the road had the 2 grooves worn in it, my '48 3/4T would lurch to the side (sometimes almost violently) to get the tires on the higher points above the grooves. At one place in town, it would scare the heck out of a passenger but I knew it was coming. It would only go to the high points and then stop. There was no danger in going into the ditch.

When I got my 235/85R16 Michelin's, all that stopped and I could bring a cup of coffee with me to work.

Last edited by Wally / Montana; Sat Jun 13 2020 02:31 PM.

1948 3/4-Ton 5-Window Flatbed Chevrolet [sandeace.com]

28 Years of Daily Driving but now on hiatus. With a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
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