3.0 vs 3.8

skipnrocks

Well-Known Member
Messages
1,351
Looking at a new atlas with a new transmission. I going to run a 6l80e which has a 4:1 first gear. I'm just curious to give a balance of crawling vs wheel speed what do you guys like? I'm leaning towards 3.0.
 

muddinmetal

Guntersville, AL
Messages
6,123
I do, especially since you have more transmission gear options than the average wheeler. You would be able to easily start most hills in 2nd where most other people couldn't
 

pipewrench

Well-Known Member
Messages
55
I have a 3.8 atlas with 5.39 gears. I dont have the wheel speed I would like. If I did it again I would do the 3.0. I'm going to regear to 4.56 to help some.
 

muddinmetal

Guntersville, AL
Messages
6,123
Off topic, but I have a 4.0 Jeep with a 2.8 1st, 4.0 low, and a 4.10 gear. It crawls no than when it was 2.8 ,2.72 , & 4.10 it is lower now, but still not a crawler gear
 

wizzo

Well-Known Member
Messages
1,832
I have a 3.8 atlas with 5.39 gears. I dont have the wheel speed I would like. If I did it again I would do the 3.0. I'm going to regear to 4.56 to help some.
Jody, I have a stock L33 5.3L, th350, 3.0 atlas and 5.13 gear ratio. I like the combo. IMO if you're gonna go 4.56 with that combo, you may need to warm up the engine a little bit. But maybe you already have?
 

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