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Mounting 305/70R 16 Duratracs on 7.5" rim width??

JUPITERH3T

Active Member
Messages
29
Location
Jupiter, FL
The recommended rim width for a 305/70R 16 Duratrac is 8"-9.5". The factory rim width is 7.5". Anyone else running 305/70R 16's on factory wheels? 4-Wheel parts said there's nothing to worry about. My Hummer dealership thinks the truck will ride horrible.....Looking for some feedback..
 

alrock

El Diablo
Staff member
Messages
10,677
Location
Scottsdale
That's the size tire I have on my rims - no issues, other than women getting naked and laying across the hood of the truck.
 

Portager

■ ☼▐▐▐▐▐▐▐ ☼■
Messages
1,506
Location
Silverado
That's the size tire I have on my rims - no issues, other than women getting naked and laying across the hood of the truck.

I have Cooper STT 315/75R16 which have a recommended width of 8" to 10", but I have them on 7.5" wide rims with no problem. Except the naked women want to ride in my lap! Then my wife gets jealous and I end up sleeping in the garage.
 

08SolarFlareH3

Super Swampers
Messages
2,525
Location
Finger Lakes, NY
Like, everyone else said you won't have an issue. The recommended rim width for my 315/75R16's is 10" and have no issues with a 7.5" rim.


Sent using Tapatalk
 

Xlr8n

Well-Known Member
Messages
140
Location
Midwest
Just don't go with 245 75's in P-metric street tread, or you'll end up with naked men lying across the hood of your truck.....YIKES!
 

08H3

Well-Known Member
Messages
1,370
Location
United States
I struggled with that too. The H3 is my wife's daily driver and I didn't want to do anything I felt even remotely compromised her safety. I went ahead with 315-75's and have never had any issue.
 

JUPITERH3T

Active Member
Messages
29
Location
Jupiter, FL
I struggled with that too. The H3 is my wife's daily driver and I didn't want to do anything I felt even remotely compromised her safety. I went ahead with 315-75's and have never had any issue.

I really wanted the 315's but didn't want to kill my accelleration and towing ability (I have a 28' Checkmate with twin outoboards) or gas mileage. The 305's were the identicle diameter as the factory 285's; just 2" wider so I knew I wouldn't hurt the drivetrain..
 

ATLibo

Probationary Member
Messages
3
Location
Atlanta
I really wanted the 315's but didn't want to kill my accelleration and towing ability (I have a 28' Checkmate with twin outoboards) or gas mileage. The 305's were the identicle diameter as the factory 285's; just 2" wider so I knew I wouldn't hurt the drivetrain..

only owned my '06 for a few weeks.. the 305's ride solid. just drove to the OBX in NC 1300miles roundtrip. no issues. including beach driving.
 

mkmcgreg

Well-Known Member
Messages
196
Location
Carmel
I agree because this is the fact set up I am thinking when it's time for new tires. Mine is a daily driver and can't pull my self to get 315's
 
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