Re: Which axle 3.08 or 3.42?
my 08 rclb had a 3.73 with the 4l60 and my 11 rclb has a 3.42 with the 6l80 i find them pretty comparable. the 08 was around 2100 rpm @ 70 and the 11 is 1800 rpm @ 70. as far as driving the 11 actually feels like the 1st gear is a tad bit lower than the 08. I have had a few people tell me that there truck feels pretty sluggish with the 3.08 gear.
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