285's VS. 305's

[BogeyBoy82]

Thinkin about getttin a 3 in. body and either 285's or 305's on the Hoe...im tryin to see if there is a significant difference between 285's and 305's on a student's gas card...thanks

[MountaineerTom]

285's and 305's are just about the same hieght, but the 305's a slightly wider, so you'll have a bigger contact patch on the ground.  The 285's might get slightly better gas mileage, but I really don't know if it would be a very noticable difference between the two.  

[Shotgun]

I have never run 285's,I run 305's so I can't really say,but I agree with Tom,don't think the mileage would be much different since they are pretty much the same height.

[BogeyBoy82]

How bout compared to what im runnin right now..slightly larger than stock 265/75/16...thanks...

[RyanbabZ71]

one thing i would think about is how the wider tire will throw junk up on the side of your truck

 

wider tires = more rock chips

[chevy4x4trucks]

My MPG's really didn't change much when I switched to the 305's after the body lift.

 

And w/ the flares there wasn't any added worries of rock chips.

[RyanbabZ71]

And w/ the flares there wasn't any added worries of rock chips

 

I have 285s and factory flares and mudflaps and i still get my share of rock chips in the rear.

 

It might help but it wont stop em

[wandell]

I don't think you will notice much difference. Your stock 265's are almost 32 inches tall and 285's and 305's are almost 33 inches.

[BogeyBoy82]

anyone got a pic of a tahoe with a 3in body and 305's or 285's..ive seen all the silvies...and sierras with them...just tryin to get a proportional look at things

[MountaineerTom]

anyone got a pic of a tahoe with a 3in body and 305's or 285's..ive seen all the silvies...and sierras with them...just tryin to get a proportional look at things

Here's one.  Performance Accessories website  I think those are 285's.  

 

And one with 265's. Tahoe with B/L and 265's

[BogeyBoy82]

Heard of any cooling problems with new style chevys and body lifts...since the fans are 3 in higher than the motor?

[BDBWTE]

I've run 285's and 305's and the difference is about 1" of width...gas mileage is the same...if you have a narrower rim the 305's wear out faster than the 285's do but it is marginally faster so go with what makes you happy..

[MountaineerTom]

Heard of any cooling problems with new style chevys and body lifts...since the fans are 3 in higher than the motor?

I havn't heard of any, but I did a little work to mine.  I didn't have any cooling problems, I did it mainly to "clean it up" under the hood a little.  I think what I did helps the fan shroud to now work more like it's suppose to before I added the B/L.

 

Before:

 

After:

 

More pics here.  Fan Shroud