GMT K2xx Trucks General Discussion 2014+ Trucks | General Discussion

what to go with 3.73 or 4.10's

Old Sep 30, 2014 | 09:40 PM
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Default what to go with 3.73 or 4.10's

Driving from NJ to Atlanta stopping at east coast gears in NC
Want to change my tall 3.08's looking for more performance have cai , headers, no cats, dauls, and hp tuners
So what would you go with on stock tires and why
thx ahead
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Old Sep 30, 2014 | 10:37 PM
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I like my 3.73's alot, but I guess I've never had anything different.

A good all around gear choice with stock-ish size rims and tires. Also keeps the rpms low on the freeway still, at 70 mph it's still around 1800-1900 most of the time. Even when I blow up the G80 I'll still put 3.73's back in, I don't feel the need for 4.10 or higher with how and wear I drive my truck.

You should take that into mind aswell, if you drive a ton of miles 4.10 will likey reduce mileage in the long run.
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Old Sep 30, 2014 | 10:45 PM
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what's the tire size?
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Old Oct 1, 2014 | 12:11 AM
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do they have gears for the new trucks? I've looked around a lot and haven't seen any online, granted I've probably just not been looking in the right places.
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Old Oct 1, 2014 | 01:23 AM
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3.90 is the perfect mix. Good highway mileage and good out of the hole performance. Huge noticeable difference as well.
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Old Oct 1, 2014 | 01:42 AM
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Originally Posted by Noah Burns
do they have gears for the new trucks? I've looked around a lot and haven't seen any online, granted I've probably just not been looking in the right places.
No doing the conversion
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Old Oct 1, 2014 | 01:45 AM
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Originally Posted by ricksilvy
what's the tire size?
285/50/20
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Old Oct 1, 2014 | 01:53 AM
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what conversion? I'd love to put some 3.90s in mine if it won't absolutely kill my mileage
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Old Oct 1, 2014 | 02:03 AM
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Originally Posted by Noah Burns
what conversion? I'd love to put some 3.90s in mine if it won't absolutely kill my mileage
No 3.90 choice is 3.73 or 4.10

talk to Steve at east coast gears supply they convert them to 2013 rear ends more work them just swapping out ring and pinion

Last edited by jrs01; Oct 1, 2014 at 02:17 AM.
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Old Oct 1, 2014 | 03:02 AM
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so you're going to pull the entire rear end out of the truck, buy a 2013 model rear end and put that back in? just to change gears...
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