1500 Yukon XL Denali vs 2500 Suburban 8.1
Hello all, As you can see from my subject line, I'm contemplating making a change from my 2005 GMC Yukon XL Denali to a 2004 Chevy Suburban (2500). I'm looking for some real world comparisons ...
Forum Discussion
BenK wrote:
Going from 3.73's to 4.1's will have approx 10% more torque at the drive axles,
minus losses. That is how diff gearing works
I don't recommend adding a rear anti-lean (sway) bar to a vehicle that did not
have one from the OEM. If you do, make sure to increase the front bars rating
Otherwise it may create an over steering condition at the limits
For towing, that means a higher chance of jack knifing the setup during severe
maneuvers
We are talking about a 2500 Suburban, right?
The suspension & frame are already very stiff from the factory
For a 1500, yes will help, but key is to make sure the front bar is also increased
in stiffness
That's the plan - if I add a rear sway bar, I will upgrade the front from the smaller, lighter one to a matching increased-diameter front bar. Hellwig makes a front & rear matched set for the 2500 'burb.
As far as the question of what difference the Hypertech programmer makes, I installed it Monday & have been driving to get some MPG numbers to compare to the numbers I have unloaded/not towing prior to the tuner. If I can find a local dyno at a reasonable cost, I might see if I can do a few pulls with the tune engaged & then flash back to stock tune to get a baseline.
OP - sorry, hope you don't feel like I've "thread-jacked".
