Exhaust and MPG
Thread Starter
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Professional
Joined: Nov 2012
Posts: 167
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I like that size. 
Any idea what gears you have in there at the moment? You can get a build sheet from chrysler, link in DIY section, or, should be on a plate/tag somewhere on the truck as well..... (glovebox? under the hood? on the rear diff?)
Those are basically 33" tires. 4.10's work rather well with those. (close to stock RPM/MPH relationship) Gears aren't cheap, but, neither are tires. Probably came with 245/75/16's from the factory.
Any idea what gears you have in there at the moment? You can get a build sheet from chrysler, link in DIY section, or, should be on a plate/tag somewhere on the truck as well..... (glovebox? under the hood? on the rear diff?)Those are basically 33" tires. 4.10's work rather well with those. (close to stock RPM/MPH relationship) Gears aren't cheap, but, neither are tires.
Probably came with 245/75/16's from the factory.
Legend
Joined: Mar 2011
Posts: 8,914
Likes: 4
From: Fredericksburg, Virginia
I wouldn't say your trashing your trans with 33's on 3.55 gears, really depends on your driving habits to some degree.
MPG's might be taking a hit, upgrading to 4.10's would be nice, but as already mentioned they aren't cheap. Around $1200 installed I think.
For what it's worth, my tires are just under 32" and I run 3.55 gears, I usually see fairly good mpg's when I'm calculating.
MPG's might be taking a hit, upgrading to 4.10's would be nice, but as already mentioned they aren't cheap. Around $1200 installed I think.
For what it's worth, my tires are just under 32" and I run 3.55 gears, I usually see fairly good mpg's when I'm calculating.
Thread Starter
|
Professional
Joined: Nov 2012
Posts: 167
Likes: 0
I wouldn't say your trashing your trans with 33's on 3.55 gears, really depends on your driving habits to some degree.
MPG's might be taking a hit, upgrading to 4.10's would be nice, but as already mentioned they aren't cheap. Around $1200 installed I think.
For what it's worth, my tires are just under 32" and I run 3.55 gears, I usually see fairly good mpg's when I'm calculating.
MPG's might be taking a hit, upgrading to 4.10's would be nice, but as already mentioned they aren't cheap. Around $1200 installed I think.
For what it's worth, my tires are just under 32" and I run 3.55 gears, I usually see fairly good mpg's when I'm calculating.
Legend
Joined: Mar 2011
Posts: 8,914
Likes: 4
From: Fredericksburg, Virginia
No need for a new rear diff, no mod to make it work.
Buy the 4.10 gears for the Chrysler 9.25 rear and take it to a shop to be installed. There is a lot that has to be perfect and if you've never done it before you don't want to attempt it.
Unless you gots lots of money
Buy the 4.10 gears for the Chrysler 9.25 rear and take it to a shop to be installed. There is a lot that has to be perfect and if you've never done it before you don't want to attempt it.
Unless you gots lots of money
Thread Starter
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Professional
Joined: Nov 2012
Posts: 167
Likes: 0
No need for a new rear diff, no mod to make it work.
Buy the 4.10 gears for the Chrysler 9.25 rear and take it to a shop to be installed. There is a lot that has to be perfect and if you've never done it before you don't want to attempt it.
Unless you gots lots of money
Buy the 4.10 gears for the Chrysler 9.25 rear and take it to a shop to be installed. There is a lot that has to be perfect and if you've never done it before you don't want to attempt it.
Unless you gots lots of money
Check the Yukon add link on the right. Prices look reasonable and they have a wizard that pulls everything you need so there's no guess work.