What's new
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.

Duramax Suburban - IFS Rebuild

I don't understand this desire that everyone has to stuff the absolute largest tire possible under a truck. All they do is rob power fuel economy and handling, throw the speedometer off, and blow out ball joints and bearings faster. I fitted 305's on my Yukon after my axle swap and ended up putting 295's within a couple weeks. If you go with a really tall tire you get more clearance under the axles.

Not trying to bash, I just want to know everyone's reasoning.
 
When talking huge tires, and really odd widths, I agree with you.

But between a 285 and 305? A 305 is just 12.5 wide. For a full size truck, this is very reasonable. Also, I'm not dealing with a SBC gas motor anymore, so a little more drag is a viable downside to increased footprint and traction.

Also, I asked what would fit. Not necessarily what I'll run. Yes, with the body lift I could go a bit taller, but trying to come up with a combo that looks and performs well
 
Personally I say you go with some 255/85R 16's. And get the backend level with the front.
 
See I think the stock size tire looks ridiculously Inproportionate on these trucks. Especially the burbs. A 285/305 fills the wheel wells out that much better. Gives the truck nice stable footing and usually requires zero effort.
 
305 to a 295 is the difference of 10mm in width, and assuming the same ratio 7mm in height.. Quote didn't work or I suck. But 285-295 is about the most common tire size upgrade..

Tires look good, I cut my liner straight across at your highest point. I only run a 285 but I have a -22mm wheel. I put a new rear t-case housing after my pump rub, it is aluminum instead of magnesium, easy to to do, haven't had a problem since. I believe it was 180$
 
AJM's suggestion is probably the best setup for where you live with all that snow. Narrow tires grip better on snow and ice on highways. A lot of people in Alaska and Canada run a 235 tire on their trucks just for that reason, then switch to wider tires in summer. The 255 tire is a good balance for both conditions.
 
Maybe its the lack of power, but the 91's 12.50's do great in the snow.

Probably won't go that wide on the 03.
 
noJeepshere said:
I don't understand this desire that everyone has to stuff the absolute largest tire possible under a truck. All they do is rob power fuel economy and handling, throw the speedometer off, and blow out ball joints and bearings faster. I fitted 305's on my Yukon after my axle swap and ended up putting 295's within a couple weeks. If you go with a really tall tire you get more clearance under the axles.

Not trying to bash, I just want to know everyone's reasoning.
Click to expand...

I do it because I find myself going off road all the time.

Smoother ride, clearance, rolls over things easier, larger overall footprint, decreased soil compaction, less environmental degredation. Are all reasons I much prefer to run a larger tire.
In addition to me these trucks handle like crap ( comparatively speaking), describing the steering as numb is being generous. I have had 33s to 44s. The cutoff for me, when I feel like tire size is becoming a detriment, is around 38s
 
Just for the information:

I run H2 wheels with a 285 on my Dmax now. I tried a set of H2 with their factory 315 tires and felt that the interstate driving and towing was ok but mountain road driving and towing suffered from being out the sweet spot for the engine/transmission/ axle gearing. I dropped to the 285's and honestly love them, I have well over 130,000 miles with a 285 installed and while I run a small tune all the time I don't think the tire size is detrimental to the overall performance of the drivetrain.
 
285's on my dmax as well. Why do I run it because I don't want to get stuck on some soft ground while pulling a trailer.

IMG_6049.JPG
 
You must log in or register to reply here.

Latest Posts

Top Bottom