305 75 16

[oger]

looking to put 305s on my 1500 ext cab 4x4. what do i need to do to make them fit? any suggestions are more than welcome

[elgineddie]

Oger,

Welcome to the board!

 

Moving up to 305/75s is a jump, assuming stockers are 245/65. They are about 4" larger in diameter which would roughly change your spedometer by 10 mph. To fit those meats you'll need to add one of the following: a 4" suspension lift ($1400) or a 3" body lift ($250) and crank your torsion bars.

 

These are just off-the-top-of-the-head choices. Call a place like 4 Wheel Parts (877-474-4821) and an expert will let ya know the real answer since they do installs as well. They are one of my favorite shops.

 

Good luck!

 

Ed in Chicagoland

[Bruce03Silverado]

I was able, and I know a lot of others were too, to get 285/75/16's on the stock rims with no modifications at all and the speedo is only a few mph off. I had 245's when bought new.