I just wanted to post this to help anyone going to 19.5s on a 2013 Chevy 2500HD, I went with Vision 81 wheels and Toyo M608 tires in 245/70/19.5. This gives me a 4500lb capacity on the wheels and 4540 on the tires @110psi, they fit great with no trimming or mods to the truck at stock ride height. I have about 400 miles on them and they are a little sqirmy and track with grooves in the pavement but are getting better as they heat cycle. I got the tires from Les Schwab in Mount Vernon, they did a great job on the mount and balance. They are used to dealing with commercial tires and use a road force balancer, I have less vibration than with my old stock Duravis 700s that came on the truck.

Congrats on the new tires. FWIW, with my previous truck, a SRW with 19.5s, 80-85 pressure seemed to steer better than higher pressures on the front. My F450 that came stock with 19.5s has 80 as the pressure recommended for the front at 14500 GVWR. I think that means my trial/error was pretty good. :) In any case, try less pressure on the front if you aren't already at 80, and you'll probably find it helps with the tracking of the front.If you are running around unloaded, you may also find you need to lower the pressure for really bumpy roads. I found 65 to be pretty good for daily driving, but you obviously need a good compressor to get back up to 100 or so.

The wheels/tires look great on the truck. :)

jimh425 wrote:I found 65 to be pretty good for daily driving, but you obviously need a good compressor to get back up to 100 or so.That's good info, I haven't had time to try or play with air pressure settings quite yet. I have Firestone airbags with on-board air, but the OBA system is not at all up to the task of air'ing up 19.5's. In my Jeeping days, I was really big on Viair OBA systems. Tried the ARB compressors, they're good for lockers...Tires...Not so much. I'm looking at getting the Viair Dual 400c OBA system for the truck. Had it on my last Jeep, great all around setup for air tools and tires. Excellent volume for a 12v system, and a high enough pressure to air up 19.5's.

jimh425 wrote:Congrats on the new tires. FWIW, with my previous truck, a SRW with 19.5s, 80-85 pressure seemed to steer better than higher pressures on the front. My F450 that came stock with 19.5s has 80 as the pressure recommended for the front at 14500 GVWR. I think that means my trial/error was pretty good. :) In any case, try less pressure on the front if you aren't already at 80, and you'll probably find it helps with the tracking of the front.If you are running around unloaded, you may also find you need to lower the pressure for really bumpy roads. I found 65 to be pretty good for daily driving, but you obviously need a good compressor to get back up to 100 or so.Thanks, I am running 75 in the fronts and 80 in the rears and it rides good. I haul a 3000lb commercial cap most of the time so I don't have to worry about running around unloaded. This last weekend I hauled my wifes truck to the race track, it is about 13,000lbs truck and trailer and it handled great.

SoCalDesertRider wrote:The wheels/tires look great on the truck. :) Thanks:)

245/70/19.5 on a 2013 2500HD | Good Sam Community

Bedlam
Moderator
Aug 02, 2016
My F250 ran 275/70R18 tires prior to running 245/70R19.5's they were close enough to use the 18's as spares and not worry about diameter differences. I went 16PR rated tires so I would not have to air the tires up so high. My typical rear axle weight was 7000-8000 lbs.
nomadictxn
Explorer
Aug 02, 2016
Thanks Mr. Davis. That race truck is bad aSS!
S_Davis
Explorer
Aug 02, 2016
nomadictxn wrote:
Good post Mr. Davis. I run 275 70 18s on a 11 2500hd and see your new size is almost spot on the same overall diameter. Do you just haul a trailer or do you have a camper? That's an impressive race truck set up you have.
Thanks for the info.

I carry a commercial canopy for work during the week and haul the wifes drag truck to the track during the summer. She took the truck to the NHRA division six championship in 2014 and 2015. I am planning on getting a camper this winter so I wanted the extra safety margin. Here is a video of one of her wins last Saturday.

https://youtu.be/aiHW8b-C0_4
nomadictxn
Explorer
Aug 02, 2016
Good post Mr. Davis. I run 275 70 18s on a 11 2500hd and see your new size is almost spot on the same overall diameter. Do you just haul a trailer or do you have a camper? That's an impressive race truck set up you have.
Thanks for the info.
S_Davis
Explorer
Aug 02, 2016
cooldavidt wrote:
Hi

I live just north of you.

I too am looking upgrading from OEM to a higher rated tire/rim combo.

My OEM LT tires and rims are both rates at 3140 each. On a 2015 F-250

Last w/e i weighed myself in Bellingham by the airport. I am slightly overloaded on a gross basis.

My LT245 75R 17 121/ tires are Load Range E and the 3140 is written into the sidewall at 3140 lbs.

What were your original tires and rims capacity?

Would you share your total cost for this install?

The old tires were rated at 3200lbs each and I was running 6500lbs on the rear axle, not sure on the rims they were factory. I got the Vision wheels at Summit Racing for $728.00 with free shipping and Les Schwab charged me $1760.00 out the door mounted and balanced.

They even removed the TPMS sensors from my old wheels so I would not have to buy new ones and got me a spare tire the same diameter as the new tires on one of my factory rims.
cooldavidt
Explorer
Aug 01, 2016
Hi

I live just north of you.

I too am looking upgrading from OEM to a higher rated tire/rim combo.

My OEM LT tires and rims are both rates at 3140 each. On a 2015 F-250

Last w/e i weighed myself in Bellingham by the airport. I am slightly overloaded on a gross basis.

My LT245 75R 17 121/ tires are Load Range E and the 3140 is written into the sidewall at 3140 lbs.

What were your original tires and rims capacity?

Would you share your total cost for this install?
S_Davis
Explorer
Aug 01, 2016
SoCalDesertRider wrote:
The wheels/tires look great on the truck. :)

Thanks:)
S_Davis
Explorer
Aug 01, 2016
jimh425 wrote:
Congrats on the new tires.

FWIW, with my previous truck, a SRW with 19.5s, 80-85 pressure seemed to steer better than higher pressures on the front. My F450 that came stock with 19.5s has 80 as the pressure recommended for the front at 14500 GVWR. I think that means my trial/error was pretty good. :)

In any case, try less pressure on the front if you aren't already at 80, and you'll probably find it helps with the tracking of the front.

If you are running around unloaded, you may also find you need to lower the pressure for really bumpy roads. I found 65 to be pretty good for daily driving, but you obviously need a good compressor to get back up to 100 or so.

Thanks, I am running 75 in the fronts and 80 in the rears and it rides good. I haul a 3000lb commercial cap most of the time so I don't have to worry about running around unloaded. This last weekend I hauled my wifes truck to the race track, it is about 13,000lbs truck and trailer and it handled great.
Boatycall
Explorer
Aug 01, 2016
jimh425 wrote:
I found 65 to be pretty good for daily driving, but you obviously need a good compressor to get back up to 100 or so.

That's good info, I haven't had time to try or play with air pressure settings quite yet. I have Firestone airbags with on-board air, but the OBA system is not at all up to the task of air'ing up 19.5's. In my Jeeping days, I was really big on Viair OBA systems. Tried the ARB compressors, they're good for lockers...Tires...Not so much.
I'm looking at getting the Viair Dual 400c OBA system for the truck. Had it on my last Jeep, great all around setup for air tools and tires. Excellent volume for a 12v system, and a high enough pressure to air up 19.5's.
SoCalDesertRid1
Explorer
Aug 01, 2016
The wheels/tires look great on the truck. :)