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| | | | Joined: Sep 2006 Posts: 1,997 Big Bolt Forum Co-moderator | | Big Bolt Forum Co-moderator Joined: Sep 2006 Posts: 1,997 | I may purchase new tires for my 1948 two ton. What are the advantages of either? I am going to start pricing today, so if one is cheaper by a lot, that might be a deciding factor, but I would have to know what I am giving up or getting an advantage if I go smaller or bigger?
A day without laughter is a day wasted- Charlie Chaplin
When wrestling a grizzly bear, you have to keep at it until the bear gets tired, not when you get tired. 1948 Chevy 2-Ton | | | | | Joined: Jul 2001 Posts: 3,887 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Jul 2001 Posts: 3,887 | there's not a lot of difference between those sizes except that the 8.25s will be more available with more choices, and likely a bit cheaper as a result - there will be a fractional improvement in mpg and speed per rpm - watch that the fronts don't rub enough on hard turns that problems develop long term .... the 8.25s worked fine on my 46 but did rub at full lock
Bill | | | | | Joined: Jan 2005 Posts: 1,602 Shop Shark | | Shop Shark Joined: Jan 2005 Posts: 1,602 | If I remember it correctly, the 7.50's go on the front and the 8.25's on the rears. You can see the diference in the front but I haven't had a problem with 8.25's all around on my firetruck.
I couldn't find radial 7.50x20's when I was hunting tires a few years ago.
| | | | | Joined: Mar 2007 Posts: 863 Shop Shark | | Shop Shark Joined: Mar 2007 Posts: 863 | make sure that if you are going from 7.50 to 8.25 that the duals don' touch together....
I have a qoute from ITC in langley for steer tires 8.25 x 20"
for $196.00...don't know what make though...
Dave | | | | | Joined: Apr 2005 Posts: 1,107 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 1,107 | i run 7.50s on the front and 8.25s on the rear on my 6100 dump. the ashton has 8.25's all around. no issues with either truck. i also know a guy who is ruuning 9.00's all around on his 6400 firetruck. small gap between the tire and fender on the rear and the front rub at full turn. | | | | | Joined: Feb 2009 Posts: 400 'Bolter | | 'Bolter Joined: Feb 2009 Posts: 400 | Hey All, On my '53 6100 I am running 8.25-20 on the front and 9.00-20 on the rear and I don't have any problems with "steer rub". I know it sounds like some sort of ointment. 
Last edited by PapaJ; 03/19/2010 6:32 AM.
| | | | | Joined: Sep 2006 Posts: 1,997 Big Bolt Forum Co-moderator | | Big Bolt Forum Co-moderator Joined: Sep 2006 Posts: 1,997 | Yeah... steer rub sounds like a marinade for steaks. All the originals on my truck are 8.25 X 20. They were steering on the front, and traction on the back, but I will most likely put steering all around.
A day without laughter is a day wasted- Charlie Chaplin
When wrestling a grizzly bear, you have to keep at it until the bear gets tired, not when you get tired. 1948 Chevy 2-Ton | | | | | Joined: Feb 2009 Posts: 400 'Bolter | | 'Bolter Joined: Feb 2009 Posts: 400 | Yeah, got mine with the truck,nice big lugs for traction on the rear.You can look at my 'bucket' page and see what they look like.
Jeff | | | | | Joined: Jan 2005 Posts: 1,602 Shop Shark | | Shop Shark Joined: Jan 2005 Posts: 1,602 | Mine actually rube if you go "stop to stop" on the outer frame. Not a big deal as long as you remember not to cut the wheels all the way.
| | | | | Joined: Sep 2006 Posts: 1,997 Big Bolt Forum Co-moderator | | Big Bolt Forum Co-moderator Joined: Sep 2006 Posts: 1,997 | Dang I emailed Nebraska Tire over two weeks ago and still haven't heard back from them. I don't like it much when a company has an email and doesn't answer. One of the major AD truck parts guys is the same way. You have to call them if you want an answer.
A day without laughter is a day wasted- Charlie Chaplin
When wrestling a grizzly bear, you have to keep at it until the bear gets tired, not when you get tired. 1948 Chevy 2-Ton | | | | | Joined: Mar 2010 Posts: 112 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2010 Posts: 112 | Super55, go here to look at Denman tires. Very nice style selections and a wide range of sizes. Prices are reasonable and include both flaps and tubes. Denman TiresDenman has a good reputation. Have 8.25 x 20 on my 1948 GMC 3 ton, front and rear, no issues with front tire rub, plenty of space between rear tires. Billyray
1948 GMC 3 Ton Flatbed
1952 Chevy 1/2 Ton Panel
1956 Chevy 3/4 Ton NAPCO
| | | | | Joined: Feb 2010 Posts: 7 New Guy | | New Guy Joined: Feb 2010 Posts: 7 | I found the local truck tire store to have a nice stock of 9.00x20's used with 75% tread life left...they only wanted $50 each for what is an essentially new tire. running 9.00 on front (NO RUB AT ALL) and 8.25 on back. it leveled out the truck w/out any suspension mods. all said and done, $145 for two fronts and two new tubes. | | |
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