Wheels for 305/70R16 wheels?

[samckitt]

I am thinking about moving up to 305/70R16 tires from the 285/75R16 that I have. The math comes out to about the same diameter. The 285s were pushing it (in my opinion) on the 6.5"(?) factory HD wheels, but I have gotten over 70K miles out of the tires. I feel I should get wider wheels for 305 tires. I was wondering what width wheels you are using with these tires, and what backspacing for an 03 1500HD.

 

Thanks,

Scot

[2004GMC1500CC]

I am thinking about moving up to 305/70R16 tires from the 285/75R16 that I have.  The math comes out to about the same diameter.  The 285s were pushing it (in my opinion) on the 6.5"(?) factory HD wheels, but I have gotten over 70K miles out of the tires.  I feel I should get wider wheels for 305 tires.  I was wondering what width wheels you are using with these tires, and what backspacing for an 03 1500HD.

 

Thanks,

Scot

 

<{POST_SNAPBACK}>

 

 

 

Don't know about the HD, but mine came with 7.5" wide wheels.

[03HD]

I am thinking about moving up to 305/70R16 tires from the 285/75R16 that I have.  The math comes out to about the same diameter.  The 285s were pushing it (in my opinion) on the 6.5"(?) factory HD wheels, but I have gotten over 70K miles out of the tires.  I feel I should get wider wheels for 305 tires.  I was wondering what width wheels you are using with these tires, and what backspacing for an 03 1500HD.

 

Thanks,

Scot

 

<{POST_SNAPBACK}>

 

 

305's are a bit much for the 6.5" factory HD wheel. some people do it, but usually end up with uneven tire wear (wearing more in the middle). A 305 is 12" wide mathmatically, an 8" wheel would work fine, a 10" may give you trouble seating around the rim.

[Jacqson]

I am thinking about moving up to 305/70R16 tires from the 285/75R16 that I have.  The math comes out to about the same diameter.  The 285s were pushing it (in my opinion) on the 6.5"(?) factory HD wheels, but I have gotten over 70K miles out of the tires.  I feel I should get wider wheels for 305 tires.  I was wondering what width wheels you are using with these tires, and what backspacing for an 03 1500HD.

 

Thanks,

Scot

 

<{POST_SNAPBACK}>

 

 

 

I agree with 03HD. An 8" wide wheel should work fine with those tires although the tires may rub without a lift. As far as BS goes if you do not plan to use a spindle type lift then you can go with 5" of BS otherwise stick with 4.5".

[njmorin]

I'm new to the forums, and see ppl asking about tires in here so I wonder if anyone has any experience with putting a set of 325/60 R18's on a 1994 GMC 1500. They are just over 33" high and 13.5 wide. I'm adding 2" of lift all around so I know the diameter will clear but I'm not sure what offset or rim width I should use. Any information would be appreciated. The truck will also have some bushwhacker pocket style flares and custom bumpers to give more clearance also.