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  #21  
Old 03-03-2013, 10:17 PM
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321's better for highway miles per gallon yes. not so much city.
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  #22  
Old 03-03-2013, 10:18 PM
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just look at the forums, not many people are contemplating going from 3.92 to 3.21's. If you find someone wanting to, I will swap whole axles with them.
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  #23  
Old 03-04-2013, 02:54 PM
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I do believe it's between the 3.21 or 3.55. Either way I'll be calling in to see if I can add in the rear-axle differentiator. We'll see.
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  #24  
Old 03-04-2013, 03:14 PM
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Quote:
Originally Posted by domesticman View Post
I do believe it's between the 3.21 or 3.55. Either way I'll be calling in to see if I can add in the rear-axle differentiator. We'll see.
Here is what they have listed for the towing capacities for the Sport CC 4X4 with 8spd.

3.21-6450lbs
3.55-8500lbs
3.92-10000lbs
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  #25  
Old 03-04-2013, 03:55 PM
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My posi upgrade is $400 tax in. I'd automatically jump to a 3.55 axle ratio.

For anyone that truly knows (because I don't), how much would my gas mileage be affected from the 3.21 to the 3.55 axle ratio jump? YES, I am concerned about fuel - ALWAYS!
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  #26  
Old 03-04-2013, 04:00 PM
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I get the exact same milage as my friend with the 3.55 if not better I filled up in Calgary and drove to Vancouver having to fill in Abbotsford... That's 943 km averaging 11. 6 l per 100 even took a picture of display. So don't sacrifice a stronger rear end for fuel mileage
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  #27  
Old 03-04-2013, 04:08 PM
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Quote:
Originally Posted by s1000rrhp View Post
I get the exact same milage as my friend with the 3.55 if not better I filled up in Calgary and drove to Vancouver having to fill in Abbotsford... That's 943 km averaging 11. 6 l per 100 even took a picture of display. So don't sacrifice a stronger rear end for fuel mileage
Oh so you're saying buddy with the 3.55 gets the same you did mileage you did? Impact of fuel is negligable?

If you base a 101L tank to using 95L of gas (5-6L for the reserve), that's 818km. That's friggin fantastic mileage for a pickup!
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  #28  
Old 03-04-2013, 04:09 PM
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And is that with the 8-speed tranny, air ride, active grill shutters?
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  #29  
Old 03-04-2013, 04:16 PM
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Quote:
Originally Posted by domesticman View Post
And is that with the 8-speed tranny, air ride, active grill shutters?
Not so you may get little better. The 8speed gear ratio ends up the same anyways so on Highway the only advantage will be the shuttersand llowering.

Had the 121 tank it said I could go about 50 more km somewhere around that I put 112l back in

Last edited by s1000rrhp; 03-04-2013 at 04:20 PM.
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  #30  
Old 03-04-2013, 04:22 PM
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Quote:
Originally Posted by s1000rrhp View Post
Not so you may get little better. The 8speed gear ratio ends up the same anyways so on Highway the only advantage will be the shuttersand llowering.
So what you're saying is that there's no gain whether I go from 3.21 or 3.55? What do you mean "The 8speed gear ratio ends up the same anyways"?

In your above comment you said you got 11.6L hwy which is phenomenal. Did you suggest that your buddy with the 3.55 ratio would get the exact same? Sorry for misunderstanding you buddy.
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